Q: the letter is a late copy of this initial l.

A: The letter is a late copy of this initial L.
++++++++
Q: (c) delete the sentence after rule g1.1(c).

A: (c) Delete the sentence after rule G1.1(c).
++++++++
Q: this has been made possible due to the high capacity storage devices that are available these days such as hard drives, external hard drives, memory cards, usb drives etc.

A:
This has been made possible due to the high capacity storage devices that are available these days such as hard drives, external hard drives, memory cards, USB drives etc.
++++++++