MCQOPTIONS
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| 1. |
a, b, c, d are four positive real numbers such that abcd = 1, then (1 + a)(1 + b)(1 + c)(1 + d) is: |
| A. | Less than or equal to 8 |
| B. | Greater than or equal to 16 |
| C. | Greater than or equal to 8 |
| D. | Less than or equal to 15 |
| Answer» C. Greater than or equal to 8 | |