Humanists believed that scholars should study only classical texts.
focus on religious pursuits.
study a variety of subjects.
play musical instruments.

Option C (study a variety of subjects) is the right option.

Explanation:

Humanists have highlighted the significance of moral principles rather than just religious views. Humanists including its reformation are sometimes devout Christians, and therefore everyone's sponsorship of fundamentalist as well as non-religious principles often placed them in conflict mostly with the Christian faith.

The latter given preferences aren't related to the particular circumstance. So the above answer is the correct one.