Given the Problem Below, Which of the Following Is Not

Multiple Choice

Given the problem below, which of the following is not a correct strategy to illustrate this problem?
Juan practiced piano for ¾ hour on Tuesday, Wednesday, and Thursday. How long did he practice altogether?

A) Take 3 fraction strips 1 unit long and mark off  ¾ of each strip. Lay the pieces together end to end and then separate them into halves and fourths. Add all the halves together and fourths together until all possible wholes and fractions are left.
B) Use a clock to mark off the ¾ hours, starting at 12:00 and continuing around the clock marking off ¾ portions until ending up at 2:30.
C) Using a number line, starting at 0, marking off the number line in fourths, then marking off ¾ units three times.
D) Use fraction squares, shade in ¾ on each, then adding together the pieces, forming wholes and fractional parts.