The answer is B the grey , winter day
The answer that would convey yearning would be longing. It wouldn't be melancholy pretty much means sad.
Longing ex: She was longing for one of her grandmother's hugs.
It was a usual Saturday. David enters the home through the window as his mother is not at home. David has planned to play cards with his mother. He finds the faded Lily plant. He realized that he hasn't watered it since many days. With the little steps into the home, he suspects the entire home covered with dust and curtains. He wonders, how and why?
He runs towards his aunt's house and confronts to his aunt. He explains in a rush that on every Saturday he used to play cards with his mom, he used to eat fries, he used to watch 'Small Wanders' and there used to be a Lily plant. But all used to be. David's eyes got wet and he bursts into tears. David used to have a family and a good memory. Now David is all alone and he used to have memories.
If u wanted me to fill in the sentence some good word choices are
Large
Big
Huge
SMELLY
or any words to describe it