Excerpt from Selecting the Best Dog Breed for Your Family
Rebecca Sparling
6 Next, you should think about the other people and animals in your life. Certain breeds do not get along with children or
other pets very well. Some dogs are so mellow that they won't become aggressive even if toddlers pull on their tails or cats
hiss in their direction. Newfoundlands and Brittany spaniels get along well with strangers, children, and other animals.

In Section 6 of this passage, the word aggressive means
embarrassed.
frightened.
hostile
tired