Since he knew what would happen, he should be left to stew in his own juice. A. Make a stew B. Boil C. Suffer in his own juice D. Suffer for his own act

The correct answer is C.

The idiom “stew in one’s own juice” means to suffer the consequences of one’s own actions. In this case, the person who knew what would happen should be left to suffer the consequences of his own actions.

Option A is incorrect because “make a stew” does not mean to suffer the consequences of one’s own actions. Option B is incorrect because “boil” does not mean to suffer the consequences of one’s own actions. Option D is incorrect because “suffer for one’s own act” is a more general phrase that could mean many things, including suffering the consequences of one’s own actions.