What is the author’s purpose in writing this paragraph? A. to persuade readers to become cryptanalysts for the US government
B. to inform readers that many people have great motivation to decode the RSA cipher
C. to entertain readers by making them feel frustration with the RSA cipher
D. to inform readers about ways cryptanalysts can read their messages

An author’s purpose is his reason for or intent in writing.

An author’s purpose may be to amuse the reader, to persuade the reader, to

inform the reader, or to satirize a condition.

An author writes with one of four general purposes in mind:

1. To relate a story or to recount events, an author uses narrative

writing.

2. To tell what something looks like, sounds like, or feels like, the

author uses descriptive writing

3. To convince a reader to believe an idea or to take a course of

action, the author uses persuasive writing.

4. To inform or teach the reader, the author uses expository writing.

An author’s purpose is reflected in the way he writes about a topic. For

instance, if his purpose is to amuse, he will use jokes or anecdotes in his

writing.

Clues to an author’s purpose may be found in titles, prefaces, and the author’s

background.

Explanation:

the legal limit for the drivers who can drive after consuming any amount of alcohol is 21 years.

explanation:

on november 1, 1996, a "zero tolerance law" was put into effect in the new york state.

according to this zero tolerance law, for people under the age of 21 years, it was illegal to purchase and possess alcohol or to drive after consuming any amount of it.

also, the alcohol involvement rate for the drivers under the age of 21 was roughly twice that of elderly drivers.

we need to see the examples!