Snow in New York. Horse and buggies travel down a New York City street with people on the sidewalks during a snowy day.

Who painted the above image?

I can't see the image but I'm pretty sure it's "Snow In New York" by Robert Henri. It matches the description, horse and buggies traveling down the street with people on the sidewalks. (hope this helps :)

The answer to your question would be that the sentence that is written correctly is the following one: Milo's puppies are still with their mother.

The sentence in question is an example of subject verb agreement. Subject verb agreement means that the subject and the verb must agree in number. In other words, both of them should be either singular or plural. In this case, the NP "Milo's puppies" is the subject of the sentence. The head of this NP is "puppies", which is a plural noun. Therefore, the verb must also be plural (are).