All of the following were reforms to make voting more democratic during the early 1900s except "recall", since this was a measure implemented after a certain politician had already been elected.
Hippocrates theorized that personality traits and human behaviors are based on four separate temperaments associated with four fluids (“humors”) of the body: choleric temperament (yellow bile from the liver), melancholic temperament (black bile from the kidneys), sanguine temperament (red blood from the heart), and ...
The correct answer is A) a higher chance of reelection.
A potential benefit for a government leader using cost-benefit analysis is a higher chance of reelection.
A correct and useful method of decision-making is CBA or better known as cost-benefit analysis. This method is very simple. You compare your advantages to the disadvantages of the decision. You collect the information at hand and then proceed to make the best decision. In 1840, Julies Dupuit who was an Engineer from France started to use this method successfully. That is why is correct to say that a potential benefit for a government leader using cost-benefit analysis is a higher chance of reelection.
The significance was that these allowed goods to be transported much faster than by horse. Canals allowed for things to be imported and exported much more easily.