In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

[Q]: Skin cancer affects one in _ people in the United States over a lifetime.
[A]: six

[Q]: Plazas have _ accumulations of rubbish but are covered with even layers of mud bricks and plaster.
[A]: no

[Q]: Diapsids have _ they are the dino.
[A]:
two