Correct option is B
She does not wear Yellow or Purple colour T-shirts on Friday.
She wears Red colour T-shirt after the day she wears the Green T-shirt.
She wears only Purple colour T-shirt on the day between the days on which she wears Blue and Magenta colour T-shirts.
She wears Orange colour T-shirt after the day she wears the Yellow T-shirt.
| Day | Colour |
| Monday | Blue / Magenta |
| Tuesday | Purple |
| Wednesday | Magenta / Blue |
| Thursday | Green |
| Friday | Red |
| Saturday | Yellow |
| Sunday | Orange |
Answer: (B) Sunday