Conventions (a) are the way words and phrases are used to tell the story.(b) the key elements of the story and the details that support them.(c) the format, structure and timeline of the story.(d) the use of proper spelling, punctuation, capitalization, and grammar.

Conventions are:

(D) the use of proper spelling, punctuation, capitalization, and grammar.

Explanation:

Spelling:

Although one can write a word such as "sympathy" in an incorrect way (as in "simpathy") and be understood, it is part of our conventions to write it with proper spelling. Besides showing we are aware of conventions, it shows we worry about spelling rules.

Punctuation:

He likes music

The message is gotten across perfectly, but it lacks punctuation at the end (.).

Therefore, in spite of being readable and understandable, it does not follow any rules of convention.

Capitalization:

I saw peter last night.

The proper noun "Peter" is not capitalized, which means the sentence is not in agreement with conventional capitalization rules, despite being  readable and understandable.

Grammar:

If you are cold and suddenly decide to close the window, and you say "I'm going to close the window", people will understand you, although you did not follow the conventions of proper grammar, which would be using "will" when expressing decisions made at the moment of speaking ("I'll close the window").

(D) the use of proper spelling, punctuation, capitalization, and grammar

Explanation:

took the test and its correct

the answer is:

apprehensive.

the answer is the second one.