Conversation so far:
Where was Mwai Kibaki born?
Mwai Kibaki was born in Thunguri village, Othaya division of Kenya's then Nyeri District, now Nyeri County.
When was Mwai Kibaki born?
Mwai Kibaki was born 15 November 1931.
Does Mwai Kibaki have siblings?
Mwai Kibaki is the youngest son of Kikuyu peasants Kibaki Gĩthĩnji and Teresia Wanjikũ.
Where did Mwai Kibaki attend school?
Mwai Kibaki's Alma mater: Makerere University, London School of Economics.
Was Mwai Kibaki a good student?
Mwai Kibaki turned out to be an exemplary student.

Question: what did he study?
Self-contained rewrite: what did Mwai Kibaki study?