In social network analysis, the importance of ties connecting heterogeneous people that help to ensure a wide range of diversity in information and perspective is known as

bridging relationships.

Explanation:

Bridge relationships is kind of social tie that brings and connects two or more different types of social groups. It helps in transmitting a wide variety of information and ideas.In social network analysis, the importance of ties connecting heterogeneous people that help to ensure a wide range of diversity in information and perspective is known as  bridging relationships.

Iwould say the answer would be b