Explanation:

- Option 1: MS-Word

- MS-Word is a word processing application software from Microsoft.

- It is used to create, edit, and format text documents.

- Option 2: Google Docs

- Google Docs is a web-based application software from Google.

- It allows users to create and edit documents online.

- Option 3: Adobe Acrobat

- Adobe Acrobat is an application software used to create and manage PDF files.

- It enables viewing, printing, and annotating PDFs.

- Option 4: Turbo C compiler

- A compiler is not considered application software; it is system software.

- It converts source code into machine code.

Answer: Option 4: Turbo C compiler is not application software.