Answer: a) Social anxiety disorder
Explanation:
Social anxiety disorder is type of phobia in which a person is scared to face any rejection in social environment, negative review about them ,being judged etc.It is also known as social phobia.The person usually tends to feel embarrassment, fear and self consciousness.
According to the question, Christina is experiencing social anxiety disorder as she avoids parties, interaction in class , fearful and anxious in public place.
Other options are incorrect because phobia can be of different types. Generalized and post-traumatic anxiety order occurs due to general and after experiencing or witnessing traumatic incident respectively.Thus, the correct option is option(a).
Answer:
Because many of the hasn't enough money to construct roads etc.
The probability of any outcome of a random phenomenon is the proportion of times the outcome would occur in a very long series of independent repetitions.
Answer:
It protects us and living things from the harmful (UV) rays from the sun.
Explanation: