Choose the most appropriate option for the following question.
Vaishnavi prefers Economics to Maths, English to Social science, and Political Science to History. If she prefers Maths to History, and Social science to Maths, which is Vaishnavi’s least preferred subject?
Economics is preferred over maths.
Maths is preferred over History.
Social Science is preferred over Maths.
So, Vaishnavi's least preferred subject is History.