单选题Given： 12. System.out.format（"Pi is approximately %d."， Math.PI）； What is the result？（）AAn exception is thrown at runtime.BPi is approximately 3.CPi is approximately 3.141593.DCompilation fails.
题目
单选题
Given： 12. System.out.format（"Pi is approximately %d."， Math.PI）； What is the result？（）
A
An exception is thrown at runtime.
B
Pi is approximately 3.
C
Pi is approximately 3.141593.
D
Compilation fails.