Answer:
Rural orphanage
Explanation:
While convalescent homes are sometimes associated with retirement homes for the elderly, in this passage the place is described as a place in the country to send children that are too costly to support at home.
Several of the clues that the passage gives us are the mention of the new baby, the care and managing factor that is characteristic of parental responsibility, and the closing statement that it is still a place where children are sent.
"Everyone loves chocolate in any form". The preposition phrase in the previous written sentence is "in any form". A preposition phrase is considered as such when it includes a preposition, in this case the word "in", but also has an object and any other word that modifies the object. In the example used, the object of the preposition phrase is "form" and the word "any" works as a modifier of the object.