单项选择题

The following sentences tell what happened many years ago. Which is the right order of the events a. Archimedes took a bath b. Archimedes discovered his principle c. The king of Syracuse asked him to sovle a problem d. Archimedes did the experiment on his crown

A.c;a;b;d
B.b;c;a;d
C.b;c;d;a
D.c;a;d;b
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