Excel - Calculate the mode number of homeowner's policies sold by each agent/carrier combo on the monthlysales tab (round to the nearest whole number).

a) What function in Excel can be used to calculate the mode number of homeowner's policies?
b) How should the result be rounded according to the question's instructions?
c) Why is calculating the mode beneficial in analyzing homeowner's policies sales data?
d) How can this information assist agents and carriers in improving their sales strategies?