Which of the following have been determined as the oldest living tree types on earth? select all that apply.

bristlecone pine
mesquite
sequoia
ponderosa pine

letter d is correct.

answer placeholder because the system is messed up

the

geography

this is because warmer climates often don't get people sick from the flu and regions where it was often colder more people received the flu. hope this if you need more reasoning i am here to