question: on that shelf was a long thin rectangular device of some kind which had a rectangular readout on the front with various bars of colored lights displayed on it -- much like some stereo systems used to have.
Capitalize this past sentence correctly.
A: On that shelf was a long thin rectangular device of some kind which had a rectangular readout on the front with various bars of colored lights displayed on it -- much like some stereo systems used to have.

question: the espionage capabilities of the trojan also enable it to record phone calls and videos, along with surrounding audio and video, take photos with both front and rear cameras, take screenshots of sensitive information and monitor the devices location at all times.
Capitalize this past sentence correctly.
A: The espionage capabilities of the trojan also enable it to record phone calls and videos, along with surrounding audio and video, take photos with both front and rear cameras, take screenshots of sensitive information and monitor the devices location at all times.

question: sustainable and future-proof solutions
Capitalize this past sentence correctly.
A: Sustainable and future-proof solutions