For Each of the Following Scenarios, Determine Whether the Alternative

For each of the following scenarios, determine whether the alternative hypothesis would be one-sided or two-sided.
-Retired professional tennis players Martina Navratilova, Monica Seles, John McEnroe, and Jimmy Connors are all left-handed. About 10% of the general population is left-handed. Researchers are interested if the proportion of professional tennis players that are left-handed is larger than that of the general population.

A) one-sided
B) two-sided