The first step in the Scientific Method is to make objective observations. These observations are based on specific events that have already happened and can be verified by others as true or false.
Right to a fair trial and a grand jury.
In this case the answer B is correct; Iron.
Metalworkers in ancient India were renowned for their skills in creating different types of objects that were of very pure quality and the highest standards. These of course were not that common and not just anyone could obtain or afford such items.
