Six-Month-Old Frances Has Been Listening to Her Mother, Courtney, Singing

Six-month-old Frances has been listening to her mother, Courtney, singing for the past 20 minutes. How would Frances demonstrate habituation?

A) While she would be excited when her mom first started singing, she would eventually become disinterested.
B) She would attempt to imitate the noise her mother is making.
C) She would become progressively more excited by her mom's singing.
D) She would begin to exhibit the rooting reflex.