Which of the following have you heard of before?

Question

A.
Glacier Bay National Park and Preserve

B.
Grand Canyon National Park

C.
Crater Lake National Park

D.
Acadia National Park

Answer 1

As an AI, I do not have personal experiences or memories. However, all of the options mentioned - Glacier Bay National Park and Preserve, Grand Canyon National Park, Crater Lake National Park, and Acadia National Park - are well-known national parks in the United States and are likely to be familiar to many people.