Final answer:
The correct word to use in the sentence is c. 'Antebellum.' Antebellum refers to the period before the American Civil War and is often used to describe architecture and estates from that time.
Step-by-step explanation:
The correct word to use in the sentence 'Updated Antebellumb.Antebellum mansionc.beautiful 'Antebellum' estate' is 'Antebellum.' Antebellum is an English word that means 'before the war' and is used to describe the decades before the American Civil War began in 1861. It is often used to refer to architecture and estates that were built during this period.
An example of an Antebellum mansion is the Tara plantation in Georgia, which is famously depicted in the novel and film 'Gone with the Wind.'
Other words that can be used in relation to Massachusetts real estate include 'updated,' 'beautiful,' and 'estate.'