Understand: artificial selection

Problem
Consider the following passage.
In a group of plants, the genes responsible for small leaves became less common over multiple generations. This occurred because humans chose to allow only plants with large leaves to reproduce.
Which type(s) of selection could be responsible for the genetic change described in the passage?
Choose 1 answer:
Choose 1 answer:
(Choice A) only artificial selection
A
only artificial selection
(Choice B) only natural selection
B
only natural selection
(Choice C) either artificial or natural selection
C
either artificial or natural selection

A) only artificial selection