In the hierarchical scheme of taxonomic classification, the grouping just below order is :

Options

A. species
B. family
C. genus
D. class

Explanation

To answer the question regarding the grouping just below the order in the hierarchical scheme of taxonomic classification, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Taxonomic Hierarchy**: Taxonomic classification is a system used by biologists to organize and categorize living organisms based on their similarities and differences. The hierarchy consists of several levels, each representing a rank in the classification.

2. **Identifying the Ranks**: The major ranks in taxonomic classification, from the broadest to the most specific, are:
- Kingdom
- Phylum
- Class
- Order
- Family
- Genus
- Species

3. **Locating the Rank Below Order**: In the taxonomic hierarchy, the rank that comes directly below "Order" is "Family". This means that organisms that are grouped into a family share more specific characteristics than those grouped into an order.

4. **Conclusion**: Therefore, the grouping just below "Order" in the hierarchical scheme of taxonomic classification is "Family".

### Final Answer:
The grouping just below order is **Family**.

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