Correct option is B
A. Roscoe Pound – Known for the Sociological School of Jurisprudence, and believed that law is a tool of social engineering, i.e., "End of Law should be to satisfy a maximum of wants with minimum of friction."
B. Oliver Wendell Holmes – Associated with the Realist School and is famous for the quote: "The life of the law has not been logic; it has been experience."
C. Rudolf von Jhering (Ihering) – Associated with the Theory of Purpose (Zweckjurisprudenz), a forerunner to the Sociological School, emphasizing law as a means to serve social purposes rather than merely reflecting history or tradition.
D. Jerome Frank – A leading figure in the American Legal Realism movement. He argued that law is uncertain and certainty of law is a legal myth.