Answer:d. reliability.
Explanation:Research reliability refers to the fact that a research method yield stable and consistent outcome.
This means the same method can be used multiple times but still produce the same outcome such as when a professor asks the same question twice but only changing the structure of the question.
I think the answer is D coz for mutual fund investment company is the best choice
All aspects of a Muslim's life are governed by Sharia. Sharia law comes from a combination of sources including the Qur'an (the Muslim holy book), the Hadith (sayings and conduct of the prophet Muhammad) and fatwas (the rulings of Islamic scholars). Many people, including Muslims, misunderstand Sharia.