Table 3-3 Labour hours needed to make one unit: Amount produced in 160 hours: Quilts Dresses Quilts Dresses ion Helen 40 10 16 Carolyn 80 16 10 Refer to Table 3-3. What is the opportunity cost of one dress for Helen? Select one: O a. 1/4 quilt O b. 1/2 quilt O c. 1 quilt d. 4 quilts Clear my choice Activate Windows