Select the correct answer. What does the underlined phrase mean?

Nathan and Jaison were flying a kite at the park. Suddenly, it grew so windy that they couldn’t control the kite anymore. The boys decided to head home. The leaves waved as they left.

A.
The leaves were blowing in the wind.
B.
The leaves were falling off the branches.
C.
The leaves were damaged by the wind.
D.
The leaves were sad to see the boys go.