Detailed Answer
Answer (B) is correct. The answer depends on the expected level of revenues. If the company expects revenues to be $6,000,000 per year, the calculation is as follows:
Mall A: $300,000
Mall B: $6,000,000 × 4% = $240,000
Mall C: $6,000,000 × 3% = $180,000 + $150,000 = $330,000
Thus, Mall B is preferable.