I want to know the answer to the following question:
What political party was Margaret Thatcher the head of in 1975?
All the background I'm provided with is that "During Thatcher's only visit to the Conservative Research Department in the summer of 1975, a speaker had prepared a paper on why the "middle way" was the pragmatic path the Conservative Party should take, avoiding the extremes of left and right.". Is that enough to answer the question?