A pet’s life can depend on its owner’s willpower. It’s hard to resist those big, begging eyes, but you must. A surprising number of ordinary human foods are dangerous for dogs and cats. Everyone should know to keep chocolate away from their animals. But grapes, raisins, and fruit seeds are also toxic. However, only the most careful pet owners realize that. Nuts can cause severe digestive issues, especially when combined with the artificial sweeteners in peanut butter and candy."

Which sentence in the paragraph expresses a fact?


Everyone should know to keep chocolate away from their animals.


Nuts can cause severe digestive issues, especially when combined with the artificial sweeteners in peanut butter and candy.


It’s hard to resist those big, begging eyes, but you must.


However, only the most careful pet owners realize that.