Final answer:
Ann Oakley wrote 'Sex, Gender, and Society' in 1972, proposing that gender is largely a social construct distinct from biological sex.
Step-by-step explanation:
The feminist sociologist who wrote Sex, Gender, and Society in 1972, arguing that many aspects attributed to biological sex differences are in fact learned behaviors and socialization, is Ann Oakley. In her work, Oakley challenged the conventional wisdom of the time which attributed rigid gender roles exclusively to physiological differences. Instead, she posited that a large portion of gendered behavior is due to societal norms and the process of socialization, effectively separating the concepts of sex as biological from gender as a social construct.