Task: Question Answering
Input (English): Problem: if 1.5 cm of a pencil is purple, 0.5 cm of the remaining is black and the remaining 2 cm is blue, what is the total length of the pencil ?
Options: a. 5 cm, b. 3 cm, c. 1 cm, d. 4 cm, e. 2 cm
Output (English): d