Final answer:
The correct completion of the analogy 'ratify : disapprove :: peripatetic : stationary' is 'peripatetic : stationary'. 'Ratify' and 'disapprove' have opposite meanings, as do 'peripatetic' (mobile) and 'stationary' (immobile).
Step-by-step explanation:
To complete the analogy ratify : disapprove :: peripatetic : stationary, one must understand what each pair of words signifies in terms of their relationship. Ratify and disapprove have opposite meanings; to ratify is to officially approve or consent to something, while to disapprove is to not approve of it. In the same vein, peripatetic means itinerant or mobile, frequently moving or traveling from place to place. Considering this, the suitable choice that contrasts peripatetic would be a word meaning not moving or not traveling. Thus, the correct completion of the analogy is peripatetic : (c) stationary. Stationary means not moving or not intended to be moved, making it the antonym of peripatetic and the correct choice in this analogy.