What effect do phenols have on cats?

Phenols are indeed toxic to cats, which is why the correct choice indicates this toxicity. Phenols are a group of chemical compounds found in various household products like disinfectants, antiseptics, and certain essential oils. Cats have a unique metabolism that makes them particularly sensitive to phenols, as they lack the necessary enzymes to properly break down these substances.

Exposure to phenols can lead to a range of harmful effects, including gastrointestinal upset, respiratory distress, and even neurological symptoms. In more severe cases, toxicity can result in liver damage or failure, potentially leading to death.

The other options suggest a lack of harmful effects or only mild irritation, which does not accurately reflect the serious risks posed by phenol exposure in cats. Understanding the toxic effects of certain substances, especially in animals with distinct metabolic processes like cats, is crucial for ensuring their safety and well-being.