Section 47 Patents Act 1970 (CONDITIONS OF GRANT) allows USE for purposes of:

1. Section 47 Patents Act 1970: 'The grant of a patent under this Act shall be subject to the condition that — (1) any machine, apparatus or other article in respect of which the patent is granted or any article made by using a process in respect of which the patent is granted, may be imported or made by or on behalf of the Government for the purpose merely of its own use; (2) any process in respect of which the patent is granted may be used by or on behalf of the Government for the purpose merely of its own use; (3) any machine, apparatus or other article in respect of which the patent is granted or any article made by the use of the process in respect of which the patent is granted, may be made or used, and any process in respect of which the patent is granted may be used, by any person, for the purpose merely of experiment or research including the imparting of instructions to pupils.' 2. This is the BOLAR-LIKE research exemption (broader than Section 107A added in 2005 for regulatory approval). 3. Hence option B is correct. _Source: Patents Act 1970 / Copyright Act 1957 / Trade Marks Act 1999 — Patents Act 1970, Section 47_