What Was One Aspect of the "Ontario Curriculum Controversy" of 2011

What was one aspect of the "Ontario curriculum controversy" of 2011 discussed in the textbook?

A) Some parents objected to the inclusion of same-sex education in high school sexual education, and the premier decided not to include the material, which outraged the LGBTQ+ community.
B) A small minority of parents objected to starting sex education in grade school and the premier decided to eliminate the program, which enraged the majority of parents who wanted sex education introduced in grade school.
C) A small minority of parents in the province were able to persuade the premier to prevent changes to the curriculum that would have introduced topics to children at younger ages, which enraged observers who felt that a small minority of parents should not have had so great an influence on the curriculum.
D) A small minority of parents insisted that "sex education free" schools be set up in Ontario and the premier decided to eliminate sex education in grade schools as a result, which enraged the majority of parents.