The practical aspects of communicating with others, or the social "niceties" of language, are referred to as ________

Bob and Lorraine have been married for 50 years. What fundamental quality of their love has most likely kept them together for all these years?

a. Intimacy b. Commitment c. Passion d. Fidelity

By the age of 2 most toddlers will have a vocabulary of about ____

a. 100 words b. 200 words c. 300 words d. 400 words