The writer of “Should Toddlers Use Digital Devices?” wants to show understanding of the topic by providing information from credible sources.

Read the excerpt from the article. Select the two sentences that illustrate the writer has an understanding of the topic.

Common Sense Media's studies show that in 2013, 38 percent of all toddlers under the age of two spent time interacting with tablets, computers, and cell phones. That number is more than triple the percentage in a 2011 study. No doubt that number is even higher today and continues to grow.

Pediatricians are doctors who specialize in children's care. According to their organization, the American Academy of Pediatrics (AAP), a child's brain triples in size between birth and age two. Billions of brain cells grow during this time.