Answer: Sightings have not increased in number
Step-by-step explanation:
There is no text attached and I could not find one but this should be the answer.
In this digital age where almost everyone has a smartphone and are able to take videos and pictures of just about anything they see, it is becoming quite hard to hide anything.
With the increase in cell phone use, there should have been more sightings of the Loch Ness monster by now as people would simply be able to take pictures at whatever odd moment they see Nessie.