What type of measure do we use for length

Which of the fallowing best completes the sequence 12,8,5, a) 1 b) 2 c)4 d)0

Alana has 12.5 cups of flour with which she is baking four loaves of raisin bread and one large pretzel. the pretzel requires 2.5 cups of flour to make. how much flour is in each loaf of raisin bread? explain the steps to follow to get the answer.

If you answer 2+2 you will get over 80 points