Sentences of a paragraph are given below in jumbled order. Arrange the sentences in the right order to form a meaningful and coherent paragraph.
A. I was shocked to find my house unlocked.
B. To my astonishment, I found that my son, who had a spare key, had come in my absence.
C. Last Sunday I returned home late at night.
D. I ran inside in fear that my house has been robbed.

A

BCDA

B

ABCD

C

CDAB

D

CADB