During execution of your project you have observed that a team member is getting isolated by other team members. Which is a wrong approach in such a situation?

a$.$ You should try to get feedback from the other team members to understand the situation.

b$.$ The interpersonal relationships between team members are their private issue. You should not interfere.

c$.$ You should try to get feedback from the isolated team member to understand the situation.

d$.$ You should apply team building measures to improve the team's effectiveness.