Vitamin c is obtained citrus fruits
A. from
B. of
C. in
D. by

Explanation:

Vitamin C is obtained from citrus fruits.

“from” is used here to refer the place that something comes out of.

the boy's acceleration toward the girl is 2.08 m/s^2.

explanation:

according the newton's third law, the force causing the girl accelerate towards the boy will be me with equal counter-force causing the boy to accelerate towards the girl. these forces will be of equal magnitude and allows us to determine the boy's acceleration:

the boy's acceleration toward the girl is 2.08 m/s^2.