Correct Answer: Option B

Explanation

NaH is a saline (salt-like) hydride, composed of Na+ and H− ions. 

NaH (sodium hydride) is considered an ionic compound because it is composed of a metal (sodium) and a non-metal (hydrogen), where sodium readily loses an electron to form a positive ion (Na+) and hydrogen gains an electron to form a negative ion (H-) creating an ionic bond between them. 

There is an explanation video available below.

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