Which of the following is appropriate for a formal audience?

call me or drop me a line if you want to talk it over.
give me a call or shoot me an email if you want to chat.
if you want to talk it over, call me up sometime.
call or email me if you would like to discuss this.

Read the excerpt from "declaration of conscience" by margaret chase smith. the exercise of these rights should not cost one single american citizen his reputation or his right to a livelihood nor should he be in danger of losing his reputation or livelihood merely because he happens to know someone who holds unpopular beliefs. who of us doesn't? otherwise none of us could call our souls our own. otherwise thought control would have set in. this excerpt contains an example of

What is the first step in summarizing a plot? restating central ideas and key details eliminating minor or unimportant details connecting ideas with logical transitions identifying important words and phrase

In the excerpt above, what can be inferred by the statement, "the dillingham had been flung to the breeze during aformer period of prosperity.?