Four Unequal Resistors Are Connected in Series with Each Other

Multiple Choice

Four unequal resistors are connected in series with each other. Which one of the following statements is correct about this combination?

A) The equivalent resistance is more than the largest resistance.
B) The equivalent resistance is equal to average of the four resistances.
C) The equivalent resistance is equal to that of any one of the resistors.
D) The equivalent resistance is less than that of the smallest resistor.
E) The equivalent resistance is less than that of the largest resistor.