WHICH OF THE FOLLOWING VARIABLE DECLARATION IS INCORRECT

O Level Online Exam

NIELIT O Level Exam

Which of the following variable declaration is incorrect?

निम्नलिखित में से कौन सी वैरिएबल डिक्लेरेशन गलत है ?

A. a_=3

B. _a=3

C. a?=3

D. All of these सभी

Correct Answer is :

C. a?=3