A student is taking a standardized test consisting of several​ multiple-choice questions. One point is awarded for each

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A student is taking a standardized test consisting of
several​ multiple-choice questions. One point is awarded for
each correct answer. Questions left blank neither receive nor lose
points. There are seven options for each question and the student
is penalized 18 point for each wrong answer. Is it in
the​ student's best interest to​ guess? Explain.
Determine if it is in the best interest of the student to guess
and explain your answer using the
expected value. Choose the correct answer below.
​(Round to two decimal places as​ needed.)
A.
The student will have no loss or gain by guessing
because the expected value is _______
B. Yes, the student should guess because the
expected value is ___________
C. No, the student should not guess
because the expected value is ____