What is the effect of the conditional mood in the sentence? If My dog is feeling better. I could take her for a walk. (Illuminate) a. It expresses uncertainty that the dog will be walked due to its sickness.B. It asks a question to walk the dog if it feels better. C. It gives a command to walk the dog when it is no longer sick.D. It expresses the fact that the dog will definitely be walked.

The effect of the conditional mood in the sentence is that it expresses uncertainty that the dog will be walked due to its sickness. Therefore, the correct answer is a. It expresses uncertainty that the dog will be walked due to its sickness.