One of the requirements for admission to the Lunnville Roller Skating Club is a high degree of skill in roller skating. The club president has expressed concern that the club may have discriminated against qualified women in its admissions this year. Yet half of the applicants admitted to the club this year were women. This proves that there was no discrimination against qualified women applicants in the club' s admissions this year. Which one of the following is an assumption on which the conclusion of the argument depends? ['No more than half of all the roller skaters in Lunnville are women.', 'No more than half of all the roller skaters in Lunnville are men.', 'This year no more than half of the applicants who met all the qualifications for admission to the club were women.', "This year no more than half of the members of the club's committee that makes decisions about applicants' qualifications were men."]