In which of the following sentence the phrase 'at arm's length' correctly used ?
AHe threw the stone at arm's length
BNo one knows him at arm's length
CHe was given an arm's length of advice
DHe was advised to keep his old friends at arm's length
AHe threw the stone at arm's length
BNo one knows him at arm's length
CHe was given an arm's length of advice
DHe was advised to keep his old friends at arm's length