Which type of feature is the best evidence of lunar volcanism?

Question

Quizplus · Accepted Answer

Rilles are channels or valleys on the Moon's surface, which are believed to have formed as a result of the flow of lava from volcanic eruptions. These rilles are often associated with mare formations, which are dark, flat areas on the Moon's surface that are also associated with volcanic activity. Therefore, rilles associated with lava flows accompanying the mare formation are the best evidence of lunar volcanism.

Which Type of Feature Is the Best Evidence of Lunar