To start training at home, Julian purchases a pre-owned set of weights. The sellers priced it at $49 but mentioned that there will be a $5 discount if the buyer pays with cash. How should Julian pay for the weights to get it at the best value?
a Julian should pay with a debit card to avoid potential interest change on the purchase
b Julian should pay by check to be able to keep a record of the purchase
c Julian should pay with a credit card to be able to easily trace the payment
d Julian should pay with cash