Use the following pattern to complete parts (a) and (b) below. 8 + 24 = 8.22 8 + 24 + 40 = 8.32, 8 + 24 + 40 +56=8.42 a. Conjecture a generalization based on this pattern. Choose the correct answer below. A. The sum of the terms is 8.2n+1 B. The sum of the terms is 8n. OC. The sum of the terms is 8n. OD. The sum of the terms is 8(n + 1). b. Based on the generalization in (a), find the sum of the sequence 8+24+40 +56 + ... + 104. The sum of the sequence is