This is a taxation question

Q4) Betty owns two residential investment properties in Singapore which are rented out. She has the following income for the year 2020: Net rent surplus of $10.000 from Property 1 Net rent deficit of $11,500 from Property 2 Interest income from loan to her company of $1,500 The amount of taxable income derived by Betty for the Year of Assessment 2021 is:

Group of answer choices

a) $11,500.

b) $1,500

c) $0

d) None of the above