Context: Read the passage about stick insects.
Stick insects are a tasty snack for birds and other animals. But these bugs have a tricky way to hide. They look like sticks! This makes them hard to spot in the trees where they live. They also don't move much.
Stick insects have another neat trick. If a bird grabs one by the leg, a stick insect can still get away. It just lets its leg fall off! Amazingly, stick insects can grow back any legs they lose.
Why do stick insects look like sticks?
A. so they can hide on trees
B. so birds can find them more easily
Choose the right answer from the options and respond with its letter.

A