A PhDCandidate Is Collecting Data About Women in Mathematics Careers

A Ph.D.candidate is collecting data about women in mathematics careers.She interviewed 200 female mathematicians and recorded the following data: number of years attending university,math classes taken in high school (algebra,geometry,etc.) ,gender of high school math teacher,and high school average (in %) .

A) Number of years attending university,quantitative,years; math classes taken in high school,categorical; gender of high school math teacher,quantitative,male or female; high school average,categorical.
B) Number of years attending university,quantitative,years; math classes taken in high school,categorical; gender of high school math teacher,categorical; high school average,quantitative,percentage.
C) Number of years attending university,quantitative,days; math classes taken in high school,categorical; gender of high school math teacher,categorical; high school average,quantitative,percentage.
D) Number of years attending university,quantitative,years; math classes taken in high school,categorical; high school average,quantitative,percentage.
E) Number of years attending university,quantitative,months; math classes taken in high school,quantitative,class; gender of high school math teacher,categorical; high school average,quantitative,percentage.