Hardly, widely, altogether, mostly
He shot his arrow through the seven trees because it was a challenge. It was done to prove his strength, valor, and skill. Not only did it do that, but it also pierced a mountain, entered earth, made a circle and came through the other side and went back into Rama's quiver.
Progressive verbs use the form "to be."
"Are eating" takes the form "to be" since something is happening.
Therefore, your answer is B.
