Answer:
2
Explanation:
An urn initially contains one red and one blue ball. At each stage, a ball is randomly chosen and then replaced along with another of the same color. Let X denote the selection number of the first chosen ball that is blue. For instance, if the first selection is red and the second blue, then X is equal to 2.
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.
Afeitarse means "to shave oneself".
Out of the words, the best fit item is "la navaja", which means "the razor".
