How did divers overcome the challenges

Fear and Phobias

Explanation:

Sometimes, a diver’s experience is marred not by an inability to master basic skills, but by a series of psychological factors. Already existing phobias can be exaggerated underwater, with claustrophobia (the fear of small spaces) and agoraphobia (the fear of open spaces) being two of the most common. The former is especially problematic in poor visibility, while the latter may be triggered when the water is uncommonly clear. Sometimes, fear is caused by a diver’s tendency to focus on all the things that can go wrong underwater. Any kind of phobia can swiftly lead to anxiety, resulting in hyperventilation, over-exertion, and debilitating panic.

There are several ways to control fear underwater, and you’ll need to experiment to find out which works best for you. The easiest way to avoid a panic attack is to stay within your comfort zone – if your anxiety is triggered by a strong current or overhead environments or unusually deep dives, don’t sign up for dives that involve those factors. Alternatively, try identifying the source of your fear and taking the time to address it. For example, if you find yourself fixating on the horror of an out-of-air situation, revise the steps for a CESA or an alternate air source ascent until you feel confident that you can deal with the problem if it happens. Meditation and breathing exercises can also help.

explanation: the line "to save the day, harry must get past a scary three-headed guard dog" from the summary best justifies the conclusion that harry potter and the sorcerer’s stone was influenced by ancient greek mythological literature. the three other choices had nothing to do with ancient greek literature - and the words "three-headed guard dog" are what makes that choice the correct answer.