Question

drying fruit usually means applying heat, which usually causes deformation and discoloration, but researcher luis bastrrachea and colleagues have recently tested a dehydration chamber that holds trays of fruit slices above a container of calcium chloride solution, which readily binds to water molecules. this room - temperature technique removes water using a simple combination of reduced air pressure and the moisture - absorbing salt. the team observed how the process unfolded under two pressure conditions and found that under standard pressure, drying varied from tray to tray, while the vacuum method achieved uniform results—fruits averaged about 30% moisture, matching commercial dried fruit and representing roughly 95% water removal. though the team concedes that vacuums may be difficult to achieve in in everyday applications, they claim that ______ which choice most logically completes the text? a) the vacuum - based approach will replace existing commercial drying systems once inexpensive household versions become more economically viable than existing appliances. b) the technique eliminates as much water as commercial dryers without any variation in results between trays in pressures that are easily achievable in regular household conditions. c) the method’s ability to achieve consistent dehydration at ambient temperature suggests potential for specialized industrial uses where preservation of color and shape is critical. d) the approach can reliably remove up to 95% of moisture from fruit slices regardless of the fruit’s original water content or structural composition.

Explanation:

The text notes traditional drying causes deformation/discoloration, while this new room-temperature method gets uniform, commercial-level moisture removal (95% water loss) with consistent results under vacuum. It acknowledges household vacuum use is hard, so a logical completion is a viable use case: industrial settings where color/shape preservation (a flaw of traditional methods) is key, which option C addresses. Option A overstates replacement certainty; Option B contradicts the text's note that household vacuum is difficult; Option D incorrectly claims independence from fruit properties, which isn't stated.

Answer:

C) the method's ability to achieve consistent dehydration at ambient temperature suggests potential for specialized industrial uses where preservation of color and shape is critical.