21 Which choice best reflects the overall sequence of
events in the passage?
A) An experiment is proposed but proves
unworkable; a less ambitious experiment is
attempted, and it yields data that give rise to a
new set of questions.
B) A new discovery leads to reconsideration of a
theory, a classic study is adapted, and theresults
are summarized
C) An anomaly is observed and simulated
experimentally, the results are compared with
previous findings, and a novel hypothesis is
proposed
D) An unexpected finding arises during the early
phase of a study, the study is modified in
response to this finding, and the results are
interpreted and evaluated.