This year, Leron and Sheena sold their home for $750,000 after all selling costs.

Under the following scenarios, how much taxable gain does the home sale generate for Leron and Sheena?

a) Leron and Sheena bought the home three years ago for $150,000 and lived in the home until it sold.

b) Leron and Sheena bought the home one year ago for $600,000 and lived in the home until it sold.

c) Leron and Sheena bought the home five years ago for $500,000. They lived in the home for three years until they decided to buy a smaller home. Their home has been vacant for the past two years.