A : All the diverse minerals element found in plants are not essential for them.
R : Some plants accumulate heavy and toxic minerals such as gold and selenium from the soil.

Options

A. If both Assertion & Reason are true and the reason is the correct explanation of the assertion.
B. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion.
C. If Assertion is true statement but Reason is false.
D. If both Assertion and Reason are false statements.

Answer

To solve the assertion-reason question, we need to analyze both statements carefully.

### Step 1: Analyze the Assertion
The assertion states: "All the diverse mineral elements found in plants are not essential for them."
- This statement is true. Plants can absorb a variety of minerals from the soil, but not all of these minerals are necessary for their growth and development. Essential minerals are those that play a direct role in metabolic processes and are required for physiological functions.

### Step 2: Analyze the Reason
The reason states: "Some plants accumulate heavy and toxic minerals such as gold and selenium from the soil."
- This statement is also true. Certain plants can take up heavy metals and toxic elements from the soil, including gold and selenium. These elements can accumulate in plant tissues, but they do not contribute to essential physiological functions.

### Step 3: Determine the Relationship Between Assertion and Reason
- While both the assertion and reason are true, the reason does not directly explain the assertion. The assertion speaks about the non-essential nature of various minerals, while the reason provides examples of non-essential minerals without explaining why they are not essential.

### Conclusion
Since both statements are true but the reason does not explain the assertion, the correct answer is that both the assertion and reason are true, but the reason is not the correct explanation of the assertion.

### Final Answer
The correct option is: Both assertion and reason are true, but reason is not the correct explanation of assertion.

---