Which of the Following Is an Example of an Intermediate

Which of the following is an example of an intermediate good?

A) the flowers that Mr. Grover buys at a local nursery
B) the flowers that Timmy picks from a neighbor's garden and brings to Mrs. Grover
C) the flour that Grandma buys to bake a birthday cake
D) the flour that Joe buys so that he can eat pizza three nights a week
E) the flour that Amy orders each month for the bakery she manages