Studying the jar carefully, Mark's guess was that there were 3,208 jelly beans in
the jar.
Which of the following changes most improves the
sentence above?
A) Change "Studying” to “Having studied".
B) Change "Mark's guess was" to "Mark guessed”.
C) Move "Studying the jar carefully" to the end of
the sentence, and adjust capitalization
appropriately.
D) Change "were" to "are".