Read the excerpt from “Tools of the Spymaster." James Jay's invisible ink did not become visible by heating. As he described it, his ink "would elude the generally known means of detection, and yet could be rendered visible by a suitable counterpart." Jay's invisible ink consisted of two chemicals. An agent used one chemical to write an invisible message. To read the message, the reader had to brush a second chemical on the paper; that chemical made the message visible. The two-bottle system, supplied by Jay, gave Washington the secure form of writing that he wanted.

Which statement best expresses the central idea of the excerpt?

James Jay was a spy for the Americans and had knowledge of chemistry.
James Jay’s invisible ink system allowed Washington to write secret messages.
James Jay believed secret messages that became visible because of heat were not secure.
James Jay’s system required two chemicals for writing and reading invisible ink messages.

The best statement that expresses the main idea of the excerpt is...James Jay’s invisible ink system allowed Washington to write secret messages.

Explanation:

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  the conflict is the challenge the main character need to solve to achieve their goals, is the major literary element because creates challenges in the story by addin uncertainty to if the goal would be achieved. in the story could be more than a single conflict, in fact, most of the stories have a diversity of them. the resolution creates a closure that may or may not be the end of the story.

  the basic types of conflict have been classified as "person againsta nature", "person against person" and "persona against self". nevertheless the basic types, some authors think that it could be more than only three types, for instance:

  i´m gonna give you a little summary about the three basic types that i think are the one importants for the question

  the confict involves stories where characters are against each other, is an external conflict, as in a gun fight or a robbery or it could be more subtle between the desires of the characters as in a love story. this type of conflict is very common in traditional literature, fairy tales and myths.

  is an external conflict between the character and an animal or a force of nature, like a tornado,a storm or even a rain. a great example of this is ernest hemingway´s "the old man and the sea"   in which the main character struggle with a marlin when he was fishing.

  in this case the conflict is internal, the character must overcome her or his own nature or make a choice between two paths.

  i hope the answer is correct and you. regards

being untruthful

eating too much

overstaying one's welcom

this is that correct answer.