how could you increase the gravitational potential energy of an object without changing its mass and gravity​

Which of the following explains why it took so long for the public to accept the negative health effects of smoking? a)people were waiting for counter reasons, and those were presented.b)scientists had not completely finalized their results, which took 30 years.c)cigarettes were cheaply available and media channels were very inefficient.d)cigarette manufacturers were trying hard to bring an alternative into the market

Can anybody me with this? ? (picture included.)

In a series circuit the __ is the same at every point