B. - Encuentra
The correct for of "encontrar" that fits the sentence is "encuentra" (él encuentra, he finds).
Hope it helped,
BioTeacher101
Answer:
"¿Qué es esto?
Explanation:
What is this? = ¿Qué es esto?
It had an estimated population 1,042,641 in 2016 within the city's administrative limits and a population of 1,401,687 in the metropolitan area