6 Since you will have plenty of birds around your backyard from all of your efforts, they will need shelter. Birdhouses are perfect for this purpose. Birdhouses protect birds from enemies such as the neighbor's cat and provide shelter from severe weather such as extreme heat or cold. Birds also build nests in trees, shrubs, and tall grass.
According to the passage, which is true about birdhouses?

Q:
A:
A) Birdhouses protect birds from harsh conditions.
B) You should always hang birdhouses high in trees.

C) Certain birds prefer brightly colored birdhouses.
D) Birdhouses are better shelters than trees or shrubs.