Answer:
Investors may invest a combined $50 million within a 12-month period.
Explanation:
According to the section, there are two pricing rates in Regulation A In the 1st Tier, for offering upto $20 million over a 12-month span and another 2nd Tier, for offerings upto $50 million over a 12-month period.
Therefore, as per the given situation the right answer is Investors are permitted to invest a combined $50 million over a 12-month period.