Algebra-1

Question Analysis
This question tests the understanding of even roots and negative exponents, specifically focusing on the restriction that even roots of negative numbers are undefined in the real number system.

Key Concept Explanation
In the real number system, even roots (such as square roots or fourth roots) are only defined for nonnegative bases. For odd roots (like cube roots), the base can be negative.

Step-by-step Solution
1. Identify the base and the root index: The base is -16 and the root index is 4 (fourth root).
2. Check if the root index is even: The roo...