What indicates that the customs officers were not much concerned about the goods of the passengers?

The official collected passports wearily and stamped them mechanically.

They trusted the passengers to declare their goods honestly before the authorities.

The customs officers were sure that everything was in order and no scrutiny was required.

The officers checked a few cases at random but did not go through the contents very thoroughly.

What indicates that the customs officers were not much concerned about

1.	What indicates that the customs officers were not much concerned about the goods of the passengers?
A.	They trusted the passengers to declare their goods honestly before the authorities.
B.	The customs officers were sure that everything was in order and no scrutiny was required.
C.	The officers checked a few cases at random but did not go through the contents very thoroughly.
D.	The official collected passports wearily and stamped them mechanically.
Answer» D. The official collected passports wearily and stamped them mechanically.