"what in the world are you going to do now, jo? " asked meg one snowy
afternoon, as her sister came tramping through the hall, in rubber
boots, old sack, and hood, with a broom in one hand and a shovel in the
other.
"going out for exercise," answered jo with a mischievous twinkle in her
eyes.
"i should think two long walks this morning would have been enough!
it's cold and dull out, and i advise you to stay warm and dry by the
fire, as i do," said meg with a shiver.

"never take advice! can't keep still all day, and not being a
cat, i don't like to doze by the fire. i like adventures, and i'm
going to find some."

why does alcott most likely begin the chapter with character dialogue?

to introduce the characters in the story
to set up the problem in the story
to establish the mood of the story
to keep the momentum of the story going