Answer:
B) hardware and operating system
Step-by-step explanation:
A platform can be defined as a computing environment for building and executing sets of code in a software application or program such as an application programming interface (API).
The two parts of the platform used to run an application software are both hardware and operating system.
A hardware platform can be defined as a collection of hardware that are compatible with each other and the software application or program to be executed. All hardware platforms have their respective low level or high level machine language that are compatible with the software application. Some examples of a hardware platform are x86, i860, MIPS, video game consoles (joysticks), IBM Z, ARM, unisys, powerpc, SPARC etc.
An operating system platform is a system software pre-installed on a computing device to manage or control software application, computer hardware and user processes. Some examples of an operating system are QNX, Linux, OpenVMS, MacOS, Microsoft windows, IBM, Solaris, VM etc.