If you were a specialist working for the national security agency, your main job would likely be
a. analyzing data from spy satellites.
b. electronic surveillance.
c. analyzing and breaking coded messages.
d. working in the field to carry out covert operations.

The answer is C. analyzing and breaking coded messages

If you're a specialist,  your job will likely to analyze and breaking coded message. If you're just a common officer , up to watch surveilence you go.

Sadly enough, real life national security agency is not as thrilling as it mentioned in the movies and tv

In order to help the student expand his/her knowledge I will help answer the question. This in hope that the student will get a piece of knowledge that will help him/her through his/her homework or future tests.

If you were a specialist working for the National Security Agency (NSA) your main responsibility and duty would be to intercept and monitor electronic messages from around the world. The correct choice is the letter

C. analyzing and breaking coded messages

I hope it helps, Regards.      

What was the length to begin with?