Vaishali fell asleep under a tree at time P and woke up at Q (as shown).She is wondering why she cannot see her shadow. Select the correct explanation for this. 1. At time 'P', the tree is blocking the light and preventing it from falling on her.2. At time 'Q', her shadow falls at the back, so she cannot see her shadow.3. She fell asleep in the morning and woke up in the evening.4. She is reflecting back sunlight.

• A. 1 and 2 only    
• B. 1 and 4 only 
• C. 2 and 3 only  
• D. 3 and 4 only