Question

Find the invalid identifier from the following : a) Roll Number b) Roll_Number c) _ths d) true​

Answer 1

Answer:

I didn't Understand your Question

Answer 2

Answer:

@pandichellam6060 abe bsdk answer nahi aata hai tu reply kiyo kara be tune harami bsdk

Explanation: bhai dekh identifier mea starting mea number spacing n hi hona chahiye as well as special character
a walle  mea rollno. number(spacing hai bhai) identifier nhi hai
b.spacing nhi hai underscore hai (khali underscore allowed hai sp.charcter mea)
c._ths bhi hai
d.true keyword nhi hai( True asli keyword hota hai tuh yea bhi identifier hai )