Provide an appropriate response.Using the symbols M and ?, give a precise definition of this expression: 
f(x) = -?.
A. For each negative number M there exists a corresponding ? > 0 such that 0 < x - c < ? ? f(x) < M.
B. For each negative number M there exists a corresponding ? > 0 such that 0 < x - c < M, ? f(x) < ?.
C. For each negative number M there exists a corresponding ? > 0 such that 0 < c - x < ? ? f(x) > M.
D. For each negative number M there exists a corresponding ? > 0 such that 0 < c - x < ? ? f(x) < M.
Answer: D
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