**Answer:**

Expanded form of the series is:

**A. -3 + 2 + 7 + 12 + 17**

**Step-by-step explanation:**

when k=1 -3+(k-1)5= -3

when k=2 -3+(k-1)5= -3+5=2

when k=3 -3+(k-1)5= -3+10=7

when k=4 -3+(k-1)5= -3+15=12

when k=5 -3+(k-1)5= -3+20=17

Hence, value of

**Hence, expanded form of the series is:**

**A. -3 + 2 + 7 + 12 + 17**