Final answer:
The new variable newvar can be represented using different conventions like camel case or snake case, depending on the programming language and coding convention being followed.
Step-by-step explanation:
The new variable newvar can be represented by any of the options listed: a) newVar, b) new_var, c) NewVar, or d) newvariable. The choice of representation depends on the programming language and coding convention being followed.
In programming languages like Java or JavaScript, the convention is to use camel case for variable names, where the first letter of each internal word is capitalized (e.g., newVar or NewVar). On the other hand, programming languages like Python typically use snake case where words are separated by underscore (e.g., new_var).
Ultimately, the choice of representation depends on the specific language and coding convention. It is important to follow the standard conventions to ensure consistency and readability of the code.