please help me brethren

it is time to write ma MBA thesis.I wish to write on two topics but it seems it is not possible.i have been thinking about two areas in marketing.one is branding of universities in ghana(my passion) and alternative ways of marketing banking products(because of my career).

for my passion area, i have this topic (branding of universities,comaparative study of two universities in kumasi) and the other topic is (Alternative ways of marketing banking products in kumasi-ghana).please can u an individuals comments about both topics.i am kind of confused