Once a planetesimal is large enough, it grows by
A) electric charges attracting other charged material.
B) generating new mass within itself.
C) passing close to its star or protostar.
D) attracting more material through gravitation.
E) heating up and sticking to encountered material.

Question

Quizplus · Accepted Answer

Once a planetesimal is large enough, its gravitational pull becomes strong enough to attract more material, leading to further growth.

Once a Planetesimal Is Large Enough, It Grows by