Final answer:
option b,Freon-12 has similar high and low pressures to refrigerant R-134a, which is often used as its replacement in refrigeration systems.
Step-by-step explanation:
The question asks which refrigerant has similar high and low pressures to Freon-12. Freon-12 is a chlorofluorocarbon (CFC) commonly known for its use in refrigeration systems before more environmentally friendly alternatives were developed. In terms of pressures, the refrigerant that shares the most similarity to Freon-12 is R-134a. This refrigerant is often used as a replacement for Freon-12 due to its lower ozone depletion potential and is utilized in many air conditioning systems for automobiles and domestic refrigerators.
Freon-12, also known as dichlorodifluoromethane or CFC-12, has similar high and low pressures to R-22 refrigerant. Both Freon-12 and R-22 are part of the chlorofluorocarbon (CFC) family of refrigerants.