Answer:
D. Donald Trump's campaign spent less money than Hillary Clinton's campaign spent.
Step-by-step explanation:
The role that money played in the 2016 presidential election was very precious as Donald Trump's campaign spent less money than Hillary Clinton's campaign spent.
The 2016 presidential election was between two candidates Hillary Clinton and Donald Trump. The 2016 presidential election was not completely based on money because even after spending less money by Donald Trump's campaign, he still won the presidential election.
Hence, the correct answer is "D. Donald Trump's campaign spent less money than Hillary Clinton's campaign spent."