5.3 W HIRL Question 7 of 10 2 Points Suppose there is a simple index of three stocks, stock X, stock Y, and stock Z. Stock X opens the day with 5000 shares at $4.30 per share. Stock y opens the day with 2000 shares at $3.20 per share. Stock Z opens the day with 8000 shares at $4.90 per share. This simple index rises 4.9% over the course of the day. What is the value of the index at the end of the day? Round your answer to the nearest hundred. O A. $68,300 O B. $67,100 O C. $68,700 O D. $70,400 SUBMIT