D. Three is definitely a run-on sentence, but this option makes the most sense.
An example of direct characterization is A) Now, Fatima was trudging toward the yearbook room, her head lowered and shaggy bangs falling across her dark brown eyes.
This is the only sentence where she is directly described.
This question is asking u to convert the number into scientific notation. pretend there's a decimal behind the last zero. move that decimal in between 3 and 4. and count how many digits u went. it's 14. so 3.48 X 10^14
so verbally it's three and forty-eight thousandths times 10 to the fourteenth power. <span />