1000 SC Q 152

[nilanjan.manna]

At the invitation of Kwame Nkrumah, W. E. B. Du Bois settled in Gharla and became the editor of the Encyclopedia Africana.

(A) At the invitation of
(B) When he was invited by
(C) An invitation coming from
(D) An invitation that came from
(E) After having an invitation by
[spoiler]
OA is A, why B is incorrect?[/spoiler]

[analyst218]

At the invitation of Kwame Nkrumah, W. E. B. Du Bois settled in Gharla and became the editor of the Encyclopedia Africana.

(A) At the invitation of
(B) When he was invited by
(C) An invitation coming from
(D) An invitation that came from
(E) After having an invitation by
[spoiler]
OA is A, why B is incorrect?[/spoiler]

passage is not talking about the timeline but instead how he was able to settle in that country.

[sumanr84]

At the invitation of Kwame Nkrumah, W. E. B. Du Bois settled in Gharla and became the editor of the Encyclopedia Africana.

(A) At the invitation of
(B) When he was invited by
(C) An invitation coming from
(D) An invitation that came from
(E) After having an invitation by
[spoiler]
OA is A, why B is incorrect?[/spoiler]

No grammatical flaw, only the intent that points to answer A. analyst has given a good expln.