Asked by AKSHAY GURU VARADHARAJAN · SRI CHAITANYA TECHNO SCHOOL, JAYANTI NAGAR.
Answer: B. Check if the keyboard cable is plugged in or if the wireless battery died.
Explanation: This is called the Physical Connection Check. Most computer problems are caused by a loose wire or a dead battery. Always check the easiest "hardware" fix before moving on to more complicated steps.
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