Help me in this question please thank u, it's urgent

Dwarf galaxies are select one: a. relatively rare. b. not very bright c. mostly spiral shaped. d. none of these.

Anormal strand of dna is shown below, followed by the same strand of dna after mutations have occurred.

9. what area of study applies scientific findings to create ways for solving problems or improving life? a biogeology b mathematics c manufacturing d engineering