vex \veks\ verb 1. To annoy 2. To cause perplexity in 3. To bring distress or
suffering to Middle English, from Anglo French vexer, from Latin vexare to
agitate, harry, probably akin to Latin vehere to convey

Using the dictionary entry, which sentence uses vex correctly?

A. The tennis players vexed over the fact that their team was ranked
number one in the county
B. Anthony's headache vexed him all morning, so he decided to take
a break from writing his research paper
c. Riley didn't understand the math problem so she vexed over the
answer for at least an hour
D. Moviegoers were vexed when the theater manager provided free
popcom for every person in the theater.