`"_____________"` uses the chemical constituents of the plant to resolve confusions.

Options

A. Cytotaxonomy
B. Karyotaxonomy
C. Chemotaxonomy
D. Numerical taxonomy

Answer

To solve the question, "_____________ uses the chemical constituents of the plant to resolve confusions," we will analyze the provided options step by step.

### Step 1: Understand the Question
The question is asking for a term that describes a method of classification based on the chemical constituents of plants.

**Hint:** Focus on the keywords "chemical constituents" and "resolve confusions" to narrow down the options.

### Step 2: Analyze the Options
1. **Cytotaxonomy**: This term refers to the classification of organisms based on the comparative studies of chromosomes during mitosis. Since it is related to chromosomes and not chemical constituents, this option is incorrect.

**Hint:** Cytotaxonomy is about chromosomes, not chemicals.

2. **Karyotaxonomy**: This deals with the classification of organisms based on the structure of the nucleus. Similar to cytotaxonomy, it does not involve chemical constituents, making this option incorrect as well.

**Hint:** Karyotaxonomy focuses on the nucleus, not on chemical compounds.

3. **Chemotaxonomy**: This is a classification method that is based on the similarities in the chemical compounds present in the cells of organisms. It specifically uses the biochemical composition to classify and resolve confusions among different organisms. This option fits the question perfectly.

**Hint:** Chemotaxonomy is all about chemical compounds and their similarities.

4. **Numerical Taxonomy**: This method involves the numerical evaluation of similarities and differences between groups of organisms, using mathematical methods. It does not specifically focus on chemical constituents, making this option incorrect.

**Hint:** Numerical taxonomy uses math, not chemical analysis.

### Step 3: Conclusion
After analyzing all the options, the correct answer is **chemotaxonomy**. It uses the chemical constituents of the plant to resolve confusions.

**Final Answer:** Chemotaxonomy uses the chemical constituents of the plant to resolve confusions.