I think the answer is hyperbole.
Hope this helps!
“Bowled over” explanation: its an idiom
Answer: Compound sentence.
Explanation: Compound sentences contain 2 independent clauses combined by a comma and coordinating conjuction.
[Mom baked cookies for the school picnic] - Independent clause
[Dad volunteered to grill the hamburgers] - Independent clause
Both the sentences are independent clauses and are combined by the coordinating conjuction ( and) and a comma.
The answer is A. the atom is small and indivisible