Correct Answer:
C. 25 MB
The maximum attachment size allowed in Gmail for a single email is 25 MB. This limit applies to files directly attached to an email.
- Options A (10 MB) and B (15 MB) are incorrect; these limits are lower than what Gmail permits.
- Option D (50 MB) is also incorrect; files larger than 25 MB cannot be directly attached. For larger files, Gmail automatically prompts users to send them via Google Drive, which offers significantly more storage capacity and allows sharing of much larger files through a link.