You're right, it's D! "Everybody 'seems' excited today because both a lawyer and a doctor are here."
Sorry for such late an answer, but I believe its A) Predicate Nominative.
Answer:
D. Huxley, Aldous
The arrival of an unwanted thing or person
Something good happened. The best thing to happen to that individual all day
To try and solve a problem or assist in some way
These are idioms
