Equal Volumes of Vinegar from a Freshly-Opened Bottle Are Added

Equal volumes of vinegar from a freshly-opened bottle are added to each of the following solutions. After complete mixing, which of the mixtures will have the highest pH?

A) 100 mL of pure water
B) 100 mL of freshly-brewed coffee
C) 100 mL of household cleanser containing 0.5M ammonia
D) 100 mL of freshly-squeezed orange juice
E) 100 mL of tomato juice