Option D is correct.
The correct order of steps of scientific enquiry are observe, question, hypothesize, experiment, analyze, formulate a conclusion.
Explanation.
Initially we observe something. Like, why a change has occurred. For example, we observed that our room is still dark even after we switched on bulb in our house. It didn't light up as it usually do.
After observing this , we tend to question why it might have happened.
Then we hypothesize i.e. give many reasons for the bulb not working like may be there is no electricity supply, may be switch is impaired or may be bulb has ceased to work.
In order to establish that we are giving the right reason for this, we will prove it through experimenting using a control set and experimental set. Like, if we think that there is a problem in the bulb then we will replace it with the new bulb.
After that we will analyze the results of the experiment. If the room lights up after replacing the bulb then that means there was a problem in the bulb. It also means that there is proper current supply and switch is also working well. But, in case the room still doesn't light up then it simply means that there is a problem with electricity supply or switch. So, we can check for them as well.
In this case if the room lights up then we reach to this conclusion that there was a problem with the bulb otherwise we will that conclude some other factors are responsible for darkness in the room.
