12. A study by Kahneman and Tversky (1982, p. 496) asked people the following question: “Linda is 31 years old, single, outspoken, and very bright. She majored in philosophy. As a student, she was deeply concerned with issues of discrimination and social justice, and also participated in antinuclear demonstrations.

Please check off the most likely alternative:

A. Linda is a bank teller.
B. Linda is a bank teller and is active in the feminist movement.”
Nearly 90% of the 86 respondents chose alternative B. Explain why alternative B cannot have a higher probability than alternative A.