Celebration of DPN includes recognizing that the movement caused increasing isolation of students and teachers
increased the number of hearing students at the school
resulted in adoption of an easier school curriculum
spurred important legislation to benefit the Deaf

The correct answer is "increased the number of hearing students at the school."

Celebration of DPN includes recognizing that the movement increased the number of hearing students at the school.

We are talking about DPN which stands for "Deaf President Now," a protest organized by the student community of Gallaudet University, Washington D.C., to express their unconformity to the imposition for a non-deaf President of the University on March 6, 1988. The student community considered that there were many high-level and qualified candidates to occupy that position. The Board named Elizabeth Zinzer, a lady who was not deaf, and the problems began.  

After too much turmoil and protest, the Board decided to name King Jordan as the University President.