Final answer:
The 'test for membership' in Beta Sigma Phi is a social evaluation by current members to assess compatibility and fit within the organization's values and goals.
Step-by-step explanation:
The 'test for membership' in Beta Sigma Phi is b) A social evaluation by current members.
Beta Sigma Phi is a women's international friendship network with a focus on personal growth through cultural and educational programs. To become a member, individuals undergo a social evaluation by current members to assess their compatibility and fit within the organization's values and goals. This evaluation typically includes engaging in conversations, participating in activities, and getting to know the members to ensure a good fit and alignment with the organization's mission.