Ariel has ‘come’ because?

Read the extract and answer the question

Ariel: All hail, great master! Grave sir, hail! I come
To answer the best pleasure; best to fly,
To swim, to dive into the fire, to ride
On the curled clouds, to thy strong bidding task
Ariel and all his quality.

(Act I Scene Two, lines 189 – 193)

A. he has been invited by Prospero
B. he wants to make a request
C. he desires a meeting
D. flying is no problem to him

Correct Answer:

Option A – he has been invited by Prospero