When defining a new datatype:
A) its best to use a contract with public storage variables, so it can be used like a class.
B) it's best to use a struct, which is cheaper than deploying a new contract.
C) it's not possible to generate new datatypes in Solidity.

Question

Quizplus · Accepted Answer

Using a struct is efficient for defining new datatypes in Solidity as it is cheaper and simpler than deploying a new contract.

When Defining a New Datatype