Kelp populations would be entirely depleted and it would impact the sea life that thrive off of kelp as their homes and source of food. Many sea creatures use kelp as a sort of barrier to prevent bigger fish from attacking them.
The right option is Tuberculosis
Tuberculosis is a contagious, airborne
disease of the lungs caused by the bacterium; Mycobacterium tuberculosis. The
bacteria is released from the lungs into the air when an infected person sneezes,
spits, or cough and this makes the disease highly contagious as it can be easily
transmitted to others.
The answer is Inadequate. Not all 15 players were surveyed.
As an example I will take the Balkan lynx and the measures for its protection.
After WW II, the subspecies of the Eurasian lynx, the Balkan lynx, was killed extensively. The reasons were that the population was growing quickly so there were much more encounters between the lynxes and the people, but also because the people believed that the lynxes were killing their livestock (mostly the sheep and goats), which turned out to not be true at all.
The Balkan lynx reached a point where it was almost totally wiped out, with only around 30 grown individuals left in the 90's, on the territories of Macedonia, Albania, Serbia (in the present Kosovo), and Montenegro.
All of the organizations from this countries which primary goal is the protection of the animals stood together and made the governments to take urgent measures and to be very strict with them. And so they did. Regulations were made where the killing of a lynx means multiple years in prison, the protected areas got more stuff to patrol and watch out, and the people were restricted into going in some areas, yet alone doing something in them.
The numbers of the lynxes is still small, but the population has almost doubled, and last year, three cubs were recorded on the territory of Macedonia, so maybe this wild cat has a brighter future.