Read the excerpt from the code book. a theoretical breakthrough would be a fundamentally new way of finding alice's private key. if a theory is an idea, then something theoretical is true. likely. unproven. unbelievable.

It is C. Unproven.

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C) unproven.

Explanation: the denotation of a word is its literal meaning, the definition that we can find in a dictionary, a word can have several denotations (or definitions). In the given excerpt we can see the use of the word "theoretical" and then the affirmation that a theory is an idea, based on the excerpt and on the given information, we can say that the denotation of "theoretical" is something that is unproven.

to me i think class room sitting education is better. i do online school and i have not learned a think haha. when i sit in the classroom i just sit there and kind of pay attention but still i get so far ahead in the class when im doing online i have nothing else better to do but play video games and i sit in school and learn and have friends and just actually learn. when i'm doing online i sit here listing to music and get on and and look up the answers i guess that is my fault for being a cheater. but to be honest i think sitting in the classroom is better.

i think the answer is either c or d

im thinking d might make more sense though

sorry if im wrong