A certain play has two $30$-minute parts and one intermission among them. The play started at $8:00$ and ended at $9:15$. How many minutes long were the intermission? (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.