Task: Question Answering
Input (English): Problem: how many 2 - inch by 3 - inch rectangular tiles are required to tile this shaded region ?
Options: ['a. less than 10', 'b. 10 — 100', 'c. 101 — 1,000', 'd. 1,001 — 1,500', 'e. 1,500 +']
Output (English): e