Mr elston has a garden shaped like a triangle. each year, he adds to the area of the garden by increasing either the base or height of the shape. the original triangle had a 5 meter base and a 10 meter height. this table shows the area of mr elston garden for different years. year, 2,3,4,5,6
area, 30,34.5,?, 45.5,52

which is the most reasonable estimate for the base and height of the triangle for year

A. 6 and 10.5
B. 6 and 11
C. 7 and 11.5
D. 8 and 12

Please help me ​