secondary 2 chevron_right Maths chevron_right Singapore

I need a detailed explanation of why the answer is option (d) and not option (c).

I think the answer should be option (c)
The dilute sugar solution has a higher water potential than the concentrated sugar solution. The question has stated that bothethe solution inthe visking tubing and outside visking tubing is sugar solution. But how can the answer be option (d) which is about water molecules.