R.V. Motors had $50,000 in cash at year-end 2012 and $25,000 in cash at year-end 2013. Cash flow from long-term investing activities totaled $70,000, and cash flow from financing activities totaled $190,000. What was the cash flow from operating activities?

a. $145,000

b. $195,000

c. $145,000

d. $95,000

e. $95,000