Hi Vineeth,
Yes, you are right in saying that it should be $$p\ge\ -1$$. However, this is a previous year SNAP question, and the options have been retained as they were in the exam. Furthermore, among the given options, only Option A covers the most number of values in the range and is, thus, the best available choice. I hope this helps!

Hi Abhishek,
Yes, you are right in saying that it should be $$p\ge -1$$. But, this is a previous year SNAP question, and options appeared as it is in the exam.
Also, among the options, only A covers the most number of values in the range and, thus, is the only possible answer.
I hope this helps.

Hi Abhishek,
You could try plugging in the options and solving the inequality. However, it would be prudent to stick to the conventional approach to avoid any errors or oversights. The video solution appears long primarily because the process of reaching the answer is appropriately explained; contrarily, in an exam setup, solving the question via the conventional method should hardly take 60-90 seconds. I hope this helps!

Thank you sir