A nurse is preparing to administer Ringer's lactate 500 mL IV bolus to Infuse over 3 hr. The drop factor of the manual IV tubing is 20 gtt/mL. The nurse should set the manual IV Infusion to deliver how many gtt/min? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

The correct answer is 56. To find the answer, we need to multiply the individual digits of 7 and 8 together, which gives us 7 x 8 = 56. This process of multiplying the digits ensures we consider each number in the original question. In contrast, other choices may involve adding, subtracting, or manipulating the numbers in different ways, which do not align with the given question. Therefore, 56 is the correct answer as it follows the specific instruction provided in the question.