Answer: Option B
desperate : feeling or showing a hopeless sense that a situation is so bad as to be impossible to deal with.
undifferentiated : not different or differentiated.
discreet : careful and prudent in one's speech or actions, especially in order to keep something confidential or to avoid embarrassment.
insensitive : showing or feeling no concern for others' feelings.
indiscriminate : non-selective; undifferentiated.
Synonym of undifferentiated is indiscriminate