Which statement(s) about graphic design are true?

		a) Reversing the sequence of years on the x-axis causes an increasing trend to look like a decreasing trend.
		b) Starting the y-axis at a point other than zero ensures that the magnitude of any trend is accurately portrayed.
		c) All of the statements are true.
		d) Starting the y-axis at zero causes an increasing trend to look like a decreasing trend.