Answer:
Option A is the answer.
Step-by-step explanation:
How would the population change if larger body size also makes iguanas more vulnerable to predatory birds?
The population would be more balanced between small, medium, and large body sizes because while larger iguanas reproduce more, smaller iguanas avoid predators better.
Larger grown up iguanas reproduce and produce off springs while smaller ones are quicker and can hide in small burrows or smaller places, so they can avoid predators in a better way.