During the 1960s, Why Did Nursing Scholars Heavily Emphasize a Focus

During the 1960s, why did nursing scholars heavily emphasize a focus on the theoretical development of nursing as its own, independent discipline?

A) To support doctoral education for nurses that was discipline specific
B) To prove that the logical positivist approach was a poor fit for the discipline
C) To encourage and enhance the continued development of nursing science
D) To promote research by nurses in all fields, not merely nursing science