Concept:The word "tricky" suggests something that is not easy to handle or manage.
Explanation:A tricky situation is one that is complicated and requires great care.
It is not straightforward or simple to deal with.
In the sentence, the speaker says they must be careful because the situation is rather tricky.
This shows that the situation is hard to deal with.
Among the options, "difficult" best matches this meaning.
Words like "deceitful" or "unexpected" do not fit the context of careful handling.
"Trivial" means unimportant, which is the opposite of a tricky situation.
Answer:D. difficult