单选题 Questions 153-154 refer to the following graph.

单选题 Which month's expenditure is the lowest?
A. April
B. May
C. June
D. July

单选题 Which of the following statements is true according to the graph?
A. January was the most profitable one of the eight months.
B. In March, income, expenditure and advertising costs were all higher than that of the previous two months.
C. In August, advertising costs were at the peak.
D. In July, income and expenditure were the same.