42.
The answer is: A
Explanation
The correct option is A: Controller-General of Patents, Designs and Trade Marks.
According to the Trade Marks Act, 1999, section 3, the Controller-General of Patents, Designs and Trade Marks, appointed under sub-section (1) of section 3 of the Patents Act, 1970, shall be the Registrar of Trade Marks for the purposes of this Act. The other options are incorrect because they do not match the title of the Controller-General as specified in the Act.