It is not necessary to create an instance of the math class because the constants and methods of the class are static. This is to say that regarding the math class, its constants and methods are fixed, they lack action or change. Therefore it is not needed to create an instance or examples of the class itself.
<span>Advertising. Advertising tends to be extremely expensive but does not always provide much returns, and often goes completely ignored by the target audience or only reaches the people you already knew about.</span>
Answer:
b. panic Disorder (without agoraphobia).
Explanation:
Panic disorder: The panic disorder is distinguished as unexpected and recurring panic attacks accompanying one month of either fret about consequences of the attacks or the future attacks as well as the specific changes in behavior because of the attack.
Agoraphobia in the absence of a history related to panic disorder is defined as an anxiety disorder in which the person dealing with the disorder doesn't meet the DSM-5 criteria for panic disorder. Agoraphobia is also referred to as the primary agoraphobia. However, in a few cases, agoraphobia can occur without the presence of panic attacks.