Answer:
The problem of (Choice B) could be solved with the expression (4+2)\times4.
Explanation:
Given:
Which problem could be solved with the expression (4+2)\times4?
(Choice A) A Bobby sold 4 baseball cards on Monday. He then sold 2 more on Tuesday. He sold the same amount for 2 weeks. How many did he sell?
(Choice B) B Danny ran 4 miles in the morning and 2 miles in the afternoon. He did this for 4 days. How many miles did he run?
(Choice C) C Suzanne makes wooden dolls. She made 2 in the morning and 2 in the afternoon. She did this for 4 days. How many dolls did she make?
Now, to choose one answer:
The problem of (Choice B) could be solved with the expression (4+2)\times4.
(Choice B) Danny ran 4 miles in the morning and 2 miles in the afternoon. He did this for 4 days. How many miles did he run?
Danny ran 4 miles in the morning and 2 miles in the afternoon.
So, adding both the miles we get:

Now, he did this for 4 days.
Thus, multiplying by 4 we get:

As, the other choices doesn't match the expression.
Therefore, the problem of (Choice B) could be solved with the expression (4+2)\times4.