In the triangle ABC, AB = 5 cm, BC = 6 cm and area of triangle is 11.25 cm². What is the value of angle ∠ABC?

A \( \sin^{- 1}{\left ( \frac{4}{5} \right )} \)

B \( \sin^{\_}{1} \left ( \frac{3}{5} \right ) \)

C \( \sin^{- 1}{\left ( \frac{3}{4} \right )} \)