Scientist created a scatter plot to represent the heights of four plants over time. Then, she found a line of best-fit to model the height in centimeters of each plant after x days. The equations of each trend line are given in the table. 1.) y = 3/2x + 3/2
2.) y = 2x + 1
3.) y = 1/2x + 3
4.) y = 3/2x + 1
According to the trend line equations, which plants are growing at the same rate per day?

A.) 1 and 2

B.) 1 and 4

C.) 2 and 3

D.) 2 and 4