When one is trying to explain or inform, it would be a third person point of view.
Answer: They helped him by building the empires in the way that he meant it to be built.
I think that it is the Atlantic but let me know if this is incorrect...
The type of current in your home is mostly alternating current. So for the given question, the correct option is option "B". Direct current is produced by the batteries. Alternating current is the current that changes direction after a certain period of time. The voltage level also gets reversed due to this reason. Alternating current is mainly produced by using an alternator. It is specially created generator for the sole purpose of creating alternating current. Homes and offices mostly use alternating current to suffice their needs.
