ANS:D - Language processor

Compiler: It is a computer program (or a set of programs) that transforms source code written in a programming language (the source language) into another computer language (the target language), with the latter often having a binary form known as object code.

Assembler: It is a program for converting instructions written in low-level symbolic code into machine code.

Interpreter: It is a program that can analyze and execute a program line by line.

A language processor: It is a hardware device designed or used to perform tasks, such as processing program code to machine code. Language processors are found in languages such as Fortran and COBOL.