The rescue team comforted the dolphin as they covered its body with wet cloth and an umbrella to prevent sunburn. Staff raised the animal's head to help it breathe, and moved it to deeper water inch by inch. The rescue process took seven hours as police, reserve staff and local fishermen joined hands.
The verb 'have' can be used as an auxiliary verb when making the present perfect tense.
To make the present perfect: has or have + the past participle.
The answer is A because the rest would incomplete sentences
A is a more proper way of saying it, instead of saying, "just to stay way from it." Most people would oblige by the choice from A as it it most proper.
