The correct option is C Neglection
Option C)neglection is correct as it means fail to care for properly and best suits the given sentence. The other options are wrong as care, affection, and attachment mean the provision of what is necessary for the health, welfare, maintenance, and protection of someone or something, a gentle feeling of fondness or liking, and an extra part or extension that is or may be attached to something to perform a particular function respectively. The correct answer is C)neglection.