The manufacturer of a new vitamin(vitamin X) decides to sponsor a study to determine thevitamin's effectiveness in curing the common cold. Five hundred out of the50,000 college students in a large city were paid to participate as subjects in this study. All the participating subjects were suffering from a cold at the start of the study. The subjects were each given two tablets of vitamin X a day. Based on information provided by the subjectsthemselves, 457 out of the 500 subjects were cured of their colds within 3 days.(The average number of days a cold lasts is 4.87days.) As a result of thisstudy, the manufacturer launched an advertising campaign based on the claim that"vitamin X is more than90% effective in curing the commoncold." Complete parts (a) through (c) below.

a) Describe as specifically as you can the target population for the study. Choose the correct answer below.

A.The target population consisted of anyone who could have a cold and would consider buying vitamin X.

B.The target population consisted of all the college students in the city who had a cold at the time.

C.The target population consisted of 500 college students who currently had colds.

D.The target population consisted of anyone in the city who could have a cold and would consider buying vitamin X.

(b) Describe the sampling frame for the study. Choose the correct answer below.

A.The sampling frame consisted of all the college students in the city who had a cold at the time.

B.The sampling frame consisted of all college students who took vitamin X.

C.The sampling frame consisted of 500 college students who currently had colds.

D.The sampling frame consisted of anyone in the city who could have a cold and would consider buying vitamin X.

(c) Describe the sample used for the study. Choose the correct answer below

A.The sample consisted of50,000 college students.

B.The sample consisted of anyone in the city who could have a cold and would consider buying vitamin X.

C.The sample consisted of the 500 students that took vitamin X.

D. The sample consisted of all the college students in the city who had a cold at the time.