Being fluent in Spanish, I can tell you the answer is a. The option b is plural... You'd only choose it if they were talking about more than one puppy. But SINCE you're talking about a singular baby, the answer is a.
<span><em>~de qué estás hablando</em> how to say it: de: <em>day</em> qué: <em>K</em> </span>estás: <span><em>es-stas </em> </span>hablando: <em>hey-bland-o</em> <em>~Hope this helped! :)</em>
