Passage:

adapted from Hide and Seek
by Fyodor Sologub

Everything in Lelechka's nursery was bright, pretty, and cheerful. Lelechka was a delightful child, and her sweet voice charmed her mother. Lelechka's eyes were dark and large, her cheeks were rosy, and her lips were made for laughter, but it was not these charms in Lelechka that gave her mother the keenest joy. Lelechka was her mother's only child and that is why every movement of Lelechka's enchanted her mother. It was great bliss to hold Lelechka on her knees and to feel the little girl in her arms—a thing as lively and as bright as a little bird.
"Mamochka, let's play priatki (hide and seek)," cried Lelechka
Her charming inability to speak correctly always made Serafima, her mother, smile with tender rapture. Lelechka then ran away, stamping with her plump little legs over the carpets, and hid herself behind the curtains near her bed.
"Where is my baby girl?" the mother asked, as she looked for Lelechka and made her believe that she did not see her, and Lelechka poured out her rippling laughter in her hiding place. Then she came out a little farther, and her mother, as though she had only just caught sight of her, seized her by her little shoulders and exclaimed joyously, "Here she is, my Lelechka!"

Question:

How does the point of view affect the plot of the passage?
A. The reader knows only what the narrator thinks and sees.
B. The reader knows what some characters think and see.
C. The reader knows what Lelechka feels about Serafima.
D. The reader knows only what Serafima sees and believes.