Question

PLEASE HELP FAST! :)Which line shows what scientists have done to find the Loch Ness Monster?

Using satellite navigation systems, the team made sure every inch of the loch was searched.
With cell phones and digital cameras, one would think that sightings of Nessie would increase.
Today's creature would have to be the offspring of an original plesiosaur trapped long ago.
The BBC team believes the legend of Nessie has endured because people see what they want to see.

Answer 1

Using satellite navigation systems, the team made sure every inch of the loch was searched.

I'm pretty sure

Answer 2

"Using satellite navigation systems, the team made sure every inch of the loch was searched" is the line that shows what scientists have done to find the Loch Ness monster. It is the only line that mentions technology and we can assume it was scientists that used it.