Commas are inserted in a number after each ________.

Options

A. Place
B. Digit
C. Period
D. None of these

Answer

To solve the question "Commas are inserted in a number after each ______," we need to analyze the options provided and understand the concept of number periods in the Indian numeral system.

### Step-by-Step Solution:

1. **Understand the Question**: The question asks about the placement of commas in a number. We need to identify what determines where commas are inserted.

**Hint**: Think about how numbers are structured in terms of periods and places.

2. **Identify the Options**: The options given are:
- Place
- Digit
- Period
- None of this

**Hint**: Consider what each of these terms means in relation to numbers.

3. **Review the Indian Number System**: In the Indian numeral system, numbers are grouped into periods. The first period is the ones (1s), the second period is the thousands (1000s), and so on. Commas are inserted after completing each period.

**Hint**: Recall how numbers are grouped in the Indian system.

4. **Determine the Correct Option**: Since commas are inserted after completing a period (like after the ones and thousands), the correct answer is "Period."

**Hint**: Think about how periods help in reading large numbers easily.

5. **Final Answer**: Therefore, the answer to the question is: "Commas are inserted in a number after each **Period**."

### Summary:
- Commas are inserted in a number after each **Period** in the Indian numeral system.