Hi, I'd like to ask how to solve this question? Thank you!!

5. Naomi and Rafa win the Australia Tennis Open and received 4.1 million as a prize. Imagine that this prize translates into a 2 % increase in their incomes and that they consume headbands and physical therapy (PT) sessions. Rafa increases his consumption of headbands by 1% but Naomi decreases her con- sumption of headbands by 1%. They both increase their consumption of PT. Rafa increases PT consumption by 3% and Naomi by 2%. Select the correct statement: (a) PT is a normal good both for Naomi and Rafa. Headbands are an inferior good for Rafa and a normal good for Naomi (b) PT is a luxury for Rafa and a normal good for Naomi. Headbands are an inferior good for Rafa and a normal good for Naomi (c) PT is a luxury good both for Naomi and Rafa. Headbands are an inferior good for Rafa and a normal good for Naomi (d) PT is a normal good for Rafa and a normal good for Naomi. Headbands are a luxury good for Rafa and a normal good for Naomi (e) *PT is a luxury for Rafa and a normal good for Naomi. Headbands are a normal good for Rafa and an inferior good for Naomi