The train came to an abrupt stop, making us wonder where we were.（　）

A:slow B:noisy C:sudden D:jumpy

The train came to an (abrupt) stop, making us wonder where we were.

A:slow B:noisy C:sudden D:jumpy

The train came to an abrupt stop, making us wonder where we were.

A:slow B:noisy C:sudden D:jumpy

The train came to an abrupt stop, making us wonder where we were.

A:slow B:noisy C:sudden D:jumpy

The train came to an (abrupt) stop, making us wonder where we were.

A:slow B:noisy C:sudden D:jumpy

The train came to an (abrupt) stop, making us wonder where we were.

A:slow B:noisy C:sudden D:jumpy