Final answer:
The approximate Minimum Inhibitory Concentration (MIC) cannot be determined based on the given information.
Step-by-step explanation:
The Minimum Inhibitory Concentration (MIC) of an antimicrobial drug against a specific organism is the lowest concentration of the drug that inhibits visible bacterial growth.
Unfortunately, the given question does not mention the specific MIC strip test results or the organism in question, which makes it impossible to determine the approximate MIC.
Therefore, none of the given options (a) 0.047 μg/ml, b) 0.125 μg/ml, c) 0.38 μg/ml, d) 256 μg/ml) can be considered as the approximate MIC.