Answer: <u>a BALL</u>
Explanation:
<u>Direct object: a BALL</u>
<u>
</u>
<u>To identify a direct object one asks "what" for the verb and the answer has no preposition to complete or answer this "what".</u>
<u></u>
<u>subject:</u> kyle
<u>predicate:</u> threw a BALL to his dog.
<u>indirect object: </u> to his dog.
<u></u>
A legend is a caption, a title or brief explanation appended to an article, illustration, cartoon, or poster.
A key is an explanatory list of symbols used in a map, table, etc.
Option A is correct, hope this helps
Maybe you just didn’t understand it or you where stressed I can do great on papers but when it comes to test I’m not very good