Final answer:
The idealized zonal pressure belts exhibit low-pressure regions at the equator and around 60 degrees north and south of the equator, attributable to air rising due to surface heating at these latitudes, making the correct answer A.
Step-by-step explanation:
The idealized zonal pressure belts have low-pressure regions at the equator and around 60 degrees north and south of the equator. This is due to the heating of the earth's surface at the equator, which causes the air to rise, creating an area of low pressure known as the Intertropical Convergence Zone (ITCZ). Additionally, the rising air that diverges at high altitudes tends to descend at around 30 degrees north and south, creating high-pressure belts and resulting in the subtropical deserts that we see in places like the Sahara. Yet, another rising of air occurs around 60 degrees north and south, which aligns with the low-pressure zones mentioned in the question, giving the correct answer as A) at the equator and around 60 degrees north and south of the equator.