C. Was
It says "my parents or my older sister". The last subject stated is "my older sister" which is singular. And the only choice that's singular is 'was'. So that should be the answer.
The answer is 3. symbolism
Explanation:
Surgical robots are not operating independently. Yet, what they are doing is increasingly helping surgeons to operate more effectively. Although the current generation of robots are highly specialized machines, they are still controlled by a highly skilled doctor.
Answer: c) they both have wrinkles
Explanation: