A; round_number(4.723, 2) - This is not a valid function call because there is no function named round_number defined in the given context.
B: convort_value(12) - This is not a valid function call either. Additionally, the expected return value "cVa1" seems to be a typo or an incorrect value.
C: Printsample() - This is a valid function call. It invokes the function named Printsample.
D: CountFactors(96 integer) - This is not a valid function call. The parameter "integer" should not be included in the function call.
E: function Sample(float 2.0) - This is not a valid function call. The function name should not start with the keyword "function," and the parameter "float 2.0" is not correctly formatted.
F: GetHeight(integer 3, integer 4) - This is a valid function call. It calls the function GetHeight with two integer arguments: 3 and 4.
References
* GeeksforGeeks: Function Calling in Programming
* Stack Overflow: Different ways to call a function

C is a programming language that primarily follows the procedural programming paradigm1. This paradigm is a subset of imperative programming and emphasizes on procedure in terms of the underlying machine model1. It involves writing a sequence of instructions to tell the computer what to do step by step, and it relies on the concept of procedure calls, where procedures, also known as routines, subroutines, or functions, are a set of instructions that perform a specific task1.
The procedural paradigm in C uses static typing, where the type of a variable is known at compile time1. This means that the type of a variable is declared and does not change over time, which is in contrast to dynamic typing, where the type can change at runtime. C's type system requires that each variable and function is explicitly declared with a type and it does not support dynamic typing as seen in languages like Python or JavaScript1.
References: 1: Introduction of Programming Paradigms - GeeksforGeeks