When did RMS Carpathia arrive on the scene of Titanic’s sinking?

When did RMS Carpathia arrive on the scene of Titanic’s sinking?
A.About an hour and a half after the sinking.
B.About one day after the sinking.
C.About several minutes after the sinking.
D.About half day after the sinking.
正确答案：About an hour and a half after the sinking.