_____ is the assemblage of families which exhibit a few similar characters.

Options

A. Class
B. Genus
C. Species
D. Order

Answer

The answer to the question "_____ is the assemblage of families which exhibit a few similar characters." is **Order**.

### Step-by-Step Solution:

1. **Understanding Biological Classification**: Biological classification is a hierarchical system used to categorize living organisms based on shared characteristics. The main ranks in this hierarchy include Kingdom, Division (or Phylum), Class, Order, Family, Genus, and Species.

2. **Identifying the Terms**: In the context of the question, we need to identify which term represents an assemblage of families. The options typically include terms like Kingdom, Division, Class, Order, and Family.

3. **Defining 'Order'**: An 'Order' in biological classification is a higher taxonomic rank that groups together families that share certain similarities. For example, the order Sapindales includes families such as Anacardiaceae (which includes mango), Rutaceae, and others.

4. **Conclusion**: Since the question asks for the term that represents an assemblage of families, the correct answer is **Order**.