To Install Windows 7, we need at least : a)16 MG of free hard disk space
b) 46MG of free Hard Disk Space ​

B

Explanation:

Your OS (operating System) Needs as much storage as possible for updates and programs, cache, tempFiles, etc. While microsoft recommends more than 1 Gb, the best answer would be answer B.

Read more here: https://support.microsoft.com/en-us/windows/windows-7-system-requirements-df0900f2-3513-a851-13e7-0d50bc24e15f#:~:text=1%20gigabyte%20(GB)%20RAM%20(,20%20GB%20(64%2Dbit)

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