A certain play has three $30$-minute parts and two intermission among them. The play started at $8:30$ and ended at $10:15$. How many minutes long were the intermissions in total? (Adapted from 2010 Math Kangaroo Problem, Level 1-2, Question \#19) 
选项为:A:$$10$$  B:$$15$$  C:$$20$$  D:$$25$$  请回答其中一个选项.