According to Section 25 of the Information Technology Act, 2000, the 'Controller' may revoke the license regarding issue of electronic signature certificate issued under Section 21 of the Act:

A. Without making an inquiry and without giving a reasonable opportunity of showing cause against the proposed revocation

B. By making an inquiry and without giving a reasonable opportunity of showing cause against the proposed revocation

C. By making an inquiry and by giving a reasonable opportunity of showing cause against the proposed revocation

D. Without making an inquiry but by giving a reasonable opportunity of showing cause against the proposed revocation

Answer: Option C