Fill in the blank with the most appropriate answer. por lo general, para entrar en un coche y arrancarlo, llaves antenas espejos tanques

First of all, you need to know what the sentence above means.
"In general, to enter a car and unlock it, you need ___."
The options are llaves (keys), antenas (antennas), espejos (mirrors), and tanques (tanks).
So obviously, based on the context, the correct answer is going to be llaves.

If you like pizza and cheese then get cheese pizza