B.F. Skinner (1904–1990) is considered by most to be one of the pivotal psychologists of the:
B.F. Skinner (1904–1990) is considered by most to be one of the pivotal psychologists of the:
(a) Eighteenth century
(b) Nineteenth century
(c) Twentieth century
(d) Twenty-first century
✅ Correct option: (c) Twentieth century
Explanation: Skinner’s major contributions occurred in the 1900s.