Select the most appropriate idiom for the underlined segment in the given sentence.

The dacoit was shot from up close by the police officer.

Point blank

The most appropriate idiom for the underlined segment in the given sentence is point blank.

The idiom "point blank" means at very close range, or without warning. It is used to describe a shot that is fired from very close to the target, or an attack that is launched without warning.

In the sentence, the dacoit was shot from up close by the police officer. This means that the police officer fired the gun from a very short distance, giving the dacoit no time to react.

The other options are not correct.

• Milksop: This means a weak or cowardly person. It is not the same as point blank.
• Smell a rat: This means to suspect that something is wrong or suspicious. It is not the same as point blank.
• Bullet proof: This means unable to be penetrated by bullets. It is not the same as point blank.