Can someone figure out a, b and d for me the teacher doesnt teach us anything so i have no idea what i'm doing

According to the theory of punctuated equilibrium, at what rate does speciation occur? species change depending on the rate of natural selection. after periods of stasis, new species evolve relatively rapidly. species change slowly and eventually form new species. some species change quickly and others change slowly to balance the overall rate.

How do antiviral drugs work? in your own words.

What element does susan b. anthony include in this passage to strengthen her argument?