Explanation:

- Option 1: Contemporaries

Refers to people or things existing at the same time or period. Often used in a historical or age-related context.

- Option 2: Homogeneous

Describes a group or a collection of things or people that are of the same kind, nature, or uniform in composition.

- Option 3: Fellows

Typically refers to companions, colleagues, or people who are in the same position or involved in the same activity but not necessarily of the same kind.

- Option 4: Colleagues

Refers to people who work together, particularly in a professional setting. It doesn't imply they are of the same kind.