Correct answer: (b) BSNL
Explanation
- A
Swachh Bharat
Mary Kom has supported cleanliness campaigns at times, but the September 2018 brand-ambassador appointment asked here is not Swachh Bharat as the keyed pairing. This option is not the key.
- B
BSNL
In September 2018 Bharat Sanchar Nigam Limited appointed six-time world boxing champion M.C. Mary Kom as its brand ambassador. That is the current-affairs match. This option is the official key.
- C
Beti Bachao Beti Padhao
Beti Bachao Beti Padhao has had other ambassadors and themes; it is not the September 2018 BSNL-style appointment in this paper. This option is therefore wrong.
- D
Project Khel
Project Khel is not the organisation named in the official key for that month. This option is not the key.
Summary. Official key is (b) BSNL. The public-sector telecom company signed Mary Kom as brand ambassador in September 2018. Swachh Bharat, Beti Bachao Beti Padhao and Project Khel are other campaigns, not that appointment. Only (b) matches the date and the stem.