Answer:
Each loaf contained  [tex]\frac{1}{8}[/tex]  a cup of whole-wheat ⇒ A
Step-by-step explanation:
∵ Anne made a recipe for miniature bread loaves that called for 7/8
  of a cup of whole-wheat flour
∵ The recipe made 7 equal-sized loaves of bread
→ That means 7/8 of a cup of whole-wheat flour maks 7 equal-sized
  loaves of bread
→ By using the ratio method
→  Cup   :   Loaves
→   [tex]\frac{7}{8}[/tex]     :   7
→   x     :   1
→ By using cross multiplication
∵ x × 7 =  [tex]\frac{7}{8}[/tex] × 1
∴ 7x =  [tex]\frac{7}{8}[/tex]
→ Divide both sides by 7 to find x
∴ x =  [tex]\frac{7}{8}[/tex] ÷ 7
∴ x = [tex]\frac{1}{8}[/tex]
∴ Each loaf contained  [tex]\frac{1}{8}[/tex]  a cup of whole-wheat
