Which one of the following is the correct way of calling a function?function_name()call function_name()ret function_name()function function_name()

To determine the correct way of calling a function in programming, we need to look at the syntax commonly used in various programming languages.

The options given are:

1. function_name()
2. call function_name()
3. ret function_name()
4. function function_name()

Analysis of Each Option

1. function_name(): This is a standard way to call a function by its name followed by parentheses, commonly seen in languages like Python, JavaScript, and C.

2. call function_name(): This syntax is used in some languages (like PHP) but is not universal across programming languages.

3. ret function_name(): This syntax is incorrect for calling a function. The ret keyword does not belong to function calling syntax; instead, it is used to return a value from a function.

4. function function_name(): This syntax is not a function call but rather a declaration of a function in some languages (e.g., in JavaScript when defining a function).

Conclusion

Based on this analysis, the correct way to call a function from the given options is:

Final Answer

function_name()