Answer:
D. makes the reader excited about what will happen next
Explanation:
Suspense is a literary device that can be defined as an anticipation or a tension. It is supposed to awake the feeling of uncertainty and curiosity about what will happen next. Readers usually love this anticipation and it can most often be found in mystery, thriller or sci-fi genres.
Here, the suspense is created by making the reader curious to discover the effects of the mentioned drug, will the character survive and what will be the outcome.
I would say the second option - "She skipped off, singing"
It gives a visual of her being very happy, instead of just saying she was happy.
Well it really depends.
If you are describing a 12 year old girl, with brown hair and brown eyes it could go something like this:
"The young, twelve year old girl, had long brown curls that fell to her shoulders. Her chocolate brown eyes were as dark as her hair and stood out on her pale, freckled skin. She was - in short - lovely."
If you are describing... let's say... a 16 year old boy with black hair and blue eyes it could go something like this:
"The young man turned his crystal blue eyes in my direction and I looked away quickly so as not to be caught staring. "How old are you?" He asked. "Sixteen," I replied timidly, twirling my long hair around my finger. "Me too," He replied, flicking his shoulder length black hair out of his eyes."