Aarushi took two food samples X and Y in separate test tubes. She added 2-3 drops of Benedict's solution in food sample X and heated it while she added two drops of copper sulphate solution and few drops of caustic soda solution in food sample Y. She observed that sample X turned brick- red while sample Y turned purple.Which of the following is correct regarding X and Y?

• A. X consists of protein while Y consists of starch,
• B. X consists of sugar while Y consists of protein.
• C. X consists of starch while Y consists of protein,
• D. X consists of sugar while Y consists of starch,