Answer:
D. Number of inputs required.
Step-by-step explanation:
Number of inputs required is not the key factor for choosing a language for a programmer because any language can take any number of inputs in the program.
The key factors for selecting a language are other options space available,Speed required,type of target application.
C/C++ are one of the fastest programming languages while java and python are slow as compared to them.
Type of target application:- If the application is android based then java,machine learning based then python or R,for backend API java,Javascript,python,Ruby.