A qualitative researcher studied women's decision to delay childbearing until their late 30s. Initial study participants referred friends who had made similar decisions. What type of sample is being used with such referrals?A. Convenience
B. Volunteer
C. Snowball
D. Purposive

C. Snowball        

Explanation:

Snowball sampling, in statistics, is described as a sampling method in which various research participants or subjects tends to recruit or select other members, participants, or subjects for a particular study or test. Snowball sampling is being used by the researcher when 'potential participants' are generally hard to find. It is referred to as snowball sampling because it collects more and more participants as it moves ahead.

The correct answer is snowball sampling.

"harry t. moore (1905-1951) – civil rights activist, leader, and the first martyr of the civil rights movement. fannie lou hamer (1917–1977) – leader in the american civil rights movement; co-founder of the national women's political caucus and freedom democratic party. james farmer (1920–1999) – congress of racial equality."

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."