The answer is a because it explains why and how it happened
They thought that just because they where providing with land and because they where of higher authority that they could make them pay more taxes. The king thought that it was fine, since they needed more money to strengthen their ships and their economy
sorry this is not the answer of your question anyway here it is a verse from Holy Qur'an about Jesus ( peace be upon him)
The Embellishment ( Qur'an 43:63)
When Jesus came with Clear Signs, he said: "Now have I come to you with Wisdom, and in order to make clear to you some of the (points) on which ye dispute: therefore fear Allah and obey me.
D. The telegraph. It was a device used for sending Morse Code messages across long distances.