To determine the number of lines read from the input file during one execution of the dataset, we need to analyze the code.

The code snippet provided is using the SAS programming language. Let's break down the code step by step:

1. DATA TEMP;: This line initializes a SAS dataset named "TEMP".

2. Infile 'filename';: This line specifies the input file to be read. However, the file name is not provided in the code snippet.

3. Input ID $5 @;: This line reads the first 5 characters from each line of the input file into the variable "ID".

4. If ID = 'RAMES' then input Y $6 Z $10 @;: This line checks if the value of "ID" is equal to 'RAMES'. If it is, then it reads the next 6 characters into the variable "Y" and the following 10 characters into the variable "Z".

5. else ID = 'VIJAY' then input R $2 @;: This line is not valid SAS syntax. It seems to be a mistake in the code.

6. Input age 5.;: This line reads the next 5 characters from each line of the input file into the variable "age".

7. RUN;: This line indicates the end of the data step.

Based on the code provided, we can see that only one "input" statement is valid, which is Input ID $5 @;. Therefore, only one line is read from the input file during one execution of the dataset.

So, the correct answer is:

B) 1

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