To answer this question, you need to understand idioms and their meanings. Let's go through each option to understand why it is correct or incorrect:
Option A) "as crooked as a dog's hind leg" - This option is correct because it is an idiom that means someone is very dishonest or deceitful. Therefore, it is an appropriate replacement for the expression "very dishonest" in the given sentence.
Option B) "as clean as a hound's tooth" - This option is incorrect because it means someone or something is very clean or pure. It does not convey the same meaning as "very dishonest," so it is not a suitable replacement in this context.
Option C) "as stubborn as a mule" - This option is incorrect because it means someone is very stubborn or obstinate, not dishonest. It does not convey the same meaning as "very dishonest," so it is not a suitable replacement in this context.
Option D) "bright-eyed and bushy-tailed" - This option is incorrect because it means someone is lively, enthusiastic, and full of energy. It does not convey the same meaning as "very dishonest," so it is not a suitable replacement in this context.
The correct answer is A) "as crooked as a dog's hind leg." This option is correct because it is an idiom that means someone is very dishonest or deceitful, which accurately replaces the expression "very dishonest" in the given sentence.