Question

Why does the author include the following sentence in the passage?

“A bird’s wing is a wonderful flying-machine, which men have been trying to
imitate these many years.” (paragraph 2)
A to describe how birds are different from humans
B to explain how strong birds’ wing feathers can be
C to introduce how different birds fly in different ways
D to illustrate how exciting the study of birds’ wings can be

Answer 1

B. to explain how strong birds' wing feathers can be

Step-by-step explanation: