A, because if you match the left triangle's sides to the right triangle's sides and simplify the fractions the ratio is 3/4. 6/8= 3/4, 9/12=3/4. and 12/16=3/4
To assess the similarity of the triangles, we check if the ratios of their corresponding sides are equal. If they are equal, we can determine the similarity ratio. The correct answer will depend on the actual side lengths provided for each triangle but can be determined by the calculations.
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