Identify which revision of the following sentence has correct subject-verb agreement.
When we were on vacation visiting Grand Teton National Park, which is in Wyoming, we met a family that comes from our hometown in Pennsylvania and have been to several national parks.
A. When we were on vacation visiting Grand Teton National Park, which are in Wyoming, we met a family that comes from our hometown in Pennsylvania and has been to several national parks.
B. When we were on vacation visiting Grand Teton National Park, which are in Wyoming, we met a family that come from our hometown in Pennsylvania and have been to several national parks.
C. When we were on vacation visiting Grand Teton National Park, which is in Wyoming, we met a family that come from our hometown in Pennsylvania and have been to several national parks.
D. When we were on vacation visiting Grand Teton National Park, which is in Wyoming, we met a family that comes from our hometown in Pennsylvania and has been to several national parks.