Explain how to find the fraction of the shop's T-shirts that are medium, blue, and on sale. Choose the correct answer below.
A.
Multiply the fraction of T-shirts that are blue by the fraction of the T-shirts that are on sale. Then, multiply the result by the fraction of the blue T-shirts that are on sale that are size medium.
B.
Add the fraction of T-shirts that are blue and the fraction of the T-shirts that are on sale. Then, multiply the result by the fraction of the blue T-shirts that are on sale that are size medium.
C.
Add the fraction of T-shirts that are blue and the fraction of the T-shirts that are on sale. Then, add the result to the fraction of the blue T-shirts that are on sale that are size medium.
D.
Multiply the fraction of T-shirts that are blue by the fraction of the T-shirts that are on sale. Then, add the result to the fraction of the blue T-shirts that are on sale that are size medium.