We rented a convertible mustang on our summer vacation with an incredible sound system.
which error does the sentence above make?

a)dangling modifier
b)squinting modifier
c)fused sentence
d)misplaced modifier

The error that this sentence makes is D. misplaced modifier.
It means that the modifier (with an incredible sound system) is placed where it shouldn't be - it is too far from the noun it modifies. It should modify the noun Mustang, but the way this sentence is incorrectly written, it seems that this modifier refers to summer vacation - as if it had an incredible sound system, and not the car.

Tf is flvs english? could you explain?