It took a lot of imagination to come up with such an（）plan. A: inherent B: ingenious C: infectious D: indulgent

He had been a strict father but was[input=type:blank,size:4][/input]to his grandchildren. (indulge, indulgent)

Ainsworth (1970) identified the attachment styles as ( ). A: easy, difficult, slow-to-warm-up, and mixed B: emotionality, activity, sociability, and impulsivity C: indulgent, neglectful, authoritarian, and authoritative D: secure, insecure-avoidant, and insecure-resistant