What tense is the verb in the sentence?

by 6: 30, i will have folded 200 newspapers.
a. past perfect
b. present perfect
c. future perfect

Which of these sentences exhibits proper usage? a. many doctors affiliated with university hospital expressed concern about the policy (moore 5). b. many doctors affiliated with university hospital expressed concern about the policy (moore 5). c. many doctors affiliated with university hospital expressed concern about the policy (moore 5). d. many doctors affiliated with university hospital expressed concern about the policy (moore 5).

Which sentence uses whether correctly

What is your interpretation of “the story of my experiments with turth”?