Arun applied for a job of English teacher in a school. In the test for the job, he scored 9 in speaking, 8 in listening, 6 in writing, and 7 in interview. For calculating the final score, weights of 4, 3, 3 and 4 were assigned to speaking, listening, writing and interview respectively. What is the weighted average score of Arun? (Round off to two decimal places)

A

6.95

B

7.57

C

7.45

D

7.75