Answer:
c. manic episode
Explanation:
Manic episode -
Manic episode as whole is not a particular disorder or diseases , it is a symptom of the disorder called the bipolar disorder .
The symptoms associated with mania are -
loss of attention , less sleep , mood swings etc .
These things affect the day to day activity of the people .
Hence , from the question , symptoms of Tina suggests that she is experiencing manic episode .