Mendel utilised ............. in his experiments.

Options

A. Logical deduction
B. Statistical analysis
C. Large sample size
D. All of these

Explanation

To solve the question "Mendel utilised ............. in his experiments," we can follow these steps:

### Step 1: Identify the context of Mendel's experiments
Mendel is known for his foundational work in genetics, particularly through his experiments with pea plants. He studied inheritance patterns and genetic variations.

### Step 2: Analyze the options provided
The options given are:
1. Logical deduction
2. Statistical analysis
3. Large sample size
4. All of these

### Step 3: Evaluate each option
- **Logical deduction**: Mendel used logical reasoning and mathematical principles to interpret the results of his experiments, particularly through the use of the Punnett square.

- **Statistical analysis**: He applied statistical methods to analyze the data from his experiments, allowing him to draw conclusions about inheritance patterns.

- **Large sample size**: Mendel conducted his experiments on a large number of pea plants to ensure the reliability and credibility of his results. A larger sample size helps in obtaining more accurate and generalizable data.

### Step 4: Determine the best answer
Since Mendel utilized logical deduction, statistical analysis, and large sample size in his experiments, the most comprehensive answer is "all of these."

### Conclusion
The correct answer to the question is **D, all of these**.

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