What is the main error of the following histogram? Histogram of monthly rent payments in a sample of residents 120 100 80 Frequency 60 40 20 O 600 700 800 900 1000 1100 2000 5000 Rent in dollars O a. The bars have the same width for intervals that have different lengths. O b. The histogram has one variable and no legend. O c. Histograms should not have a Y axis title. d. The Y axis should be a percentage and not a frequency. O e. There is nothing wrong with this histogram