Which revision correctly combines these sentences?

my computer was working very slowly. i had to restart it for the updates to take effect.

a my computer was working very slowly, i had to restart it for the updates to take effect.

b my computer was working very slowly and i had to restart it for the updates to take effect.

c my computer was working very slowly i had to restart it for the updates to take effect.

d my computer was working very slowly; i had to restart it for the updates to take effect.

My necktie rich and modest, but asserted by a simple pin-[they will say: "but how his arms and legs are thin! "]do i daredisturb the universe? in a minute there is timefor decisions and revisions which a minute will reverse. which lines indicate that the speaker is concerned about what others think of him? my morning coat, my collar mounting firmly to the chin, my necktie rich and modest, but asserted by a simple pin-in a minute there is timefor decisions and revisions which a minute will reverse. o with a bald spot in the middle of my hair[they will say: "how his hair is growing thin! "]and indeed there will be timeto wonder, "do i dare? " and, "do i dare? "

Our coach’s idea of food for the entire wrestling team was tiny sandwiches and fruit.

Which revision, if any, best fixes the bolded (capitalized in this case) part of the sentence? female cardinals, a somewhat drab bird compared to the males, blend in well with their environment. no change somewhat drab birds a somewhat drab's bird somewhat drab bird's