Is this a complete sentence, a sentence fragment, or a run-on sentence?

which spend all of their time on the ocean floor looking for food.

a.
sentence fragment

b.
run-on sentence

c.
complete sentence

List some things you like to do with ur close friends and everyday friends(school)

What is the best way to improve the conclusion? add a sentence to the ending that summarizes the writer’s topic. add a sentence to the middle that reflects on the writer’s experiences. revise the final sentence to have a different tone. revise the first sentence to state a future goal.

Which sentence is correct? laura lent me her copy of cooking weekly so i could use a recipe. i enjoy doing crossword puzzles from the new york times. herman melville wrote the novel “moby d ick.” maggie loves to read the smithsonian magazine.