 Quote by pawprint
I even began a thread- "Value of g near a black hole"
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I assume the previous thread you are referring to is this one?
http://physicsforums.com/showthread.php?t=576973
If so, yes, the answer you were given is b), and it is the correct answer.
Quote by pawprint
I now believe my prior understanding (which is intuitive rather than mathematical) was flawed. I propose that gravity approaches infinity asymptotically at the singularity, not the EH.
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Why do you think the answer you were given in the previous thread is wrong? If it's because of this...
Quote by pawprint
Can a purely Newtonian approach be used for calculations at discernable distances from the singularity?
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...then it's not a valid reason, because the answer to the question just quoted is "no". A "purely Newtonian" approach will give incorrect answers unless you are at a radial coordinate r that is much, much larger than the Schwarzschild radius (2M), so that the error in the Newtonian formulas becomes too small to measure.