usualmente juegas en un centro de recreación
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.
The answer is este it is used as a masculine adjective where as esto is a demonstrative pronoun for masculine and feminine nouns
Buénos Nochés Sénor or Sènoritá
