Your Rent Is Due,but You Are Short $100

Multiple Choice

Your rent is due,but you are short $100.You find a way around this obstacle to meet the goal of paying the rent by offering to clean your friend's house for $100.You now have
Enough money to pay your rent.To reach your goal,you have just used the thinking
Strategy of

A) reasoning.
B) decision making.
C) problem solving.
D) framing.