The correct answer is C) 2°43'. To convert 10 minutes and 52 seconds into arc units, we need to convert the time measurement into degrees, minutes, and seconds. 1 minute = 1/60 of a degree 1 second = 1/3600 of a degree Therefore, 10 minutes and 52 seconds is equivalent to 10 + (52/60) = 10.87 minutes, which is equal to 10.87 * (1/60) = 0.182 degrees, or 0°10'52". This simplifies to 2°43', which matches the correct answer choice C. The other answer choices are incorrect because they do not accurately represent the conversion of 10 minutes and 52 seconds into arc units.