The gains in value from which of the following are LEAST likely to be assessable income in Australia based on the lecture material:

A: Sarah bought Bitcoin for $10,000 and sold it later for $15,000.

B: Haoyu bought some stocks for $10,000 and sold them later for $15,000.

C: John bought a one bedroom apartment for $500,000 and sold it 5 years later for $600,000. He lived in it for the entire period as his main residence.

D: Zihan bought a one bedroom apartment for $500,000 and sold it 5 years later for $600,000. She rented it out as an investment property for the entire period.