Puritans

a. wanted to purify the church of england
b. focused on separating from the church of england
c. tolerant of catholics
d. dedicated to religious tolerance

Right

a. They wanted to purify the Church of England.

Explanation:

The Puritans did not formally seek to separate from the Church of England nor repudiate it. They critized its practices and ceremonies as too similar to  those of the Catholic Church and asked to get rid of any rituals not found in the Bible. They were a religious reform movement in the late 16th century. Under pressure from the church and the crown , they departed for the New World to found colonies there.