Which of the Following Best Approximates $\frac{5}{\pi} \int_{0}^{\pi / 2} \sin t d t$

Which of the following best approximates $\frac{5}{\pi} \int_{0}^{\pi / 2} \sin t d t$ ?

A) 1.44
B) 1.49
C) 1.54
D) 1.59
E) 1.64