OPT: a). No b). Yes
Q: Question: how many people visit crater lake national park each year? Would "The impressive average depth of this volcanic lake is due to the nearly symmetrical deep caldera formed 7,700 years ago during the violent climactic eruptions and subsequent collapse of Mount Mazama and the relatively moist climate that is typical of the crest of the Cascade Range ." be a reasonable answer?
A:
a).