If Greg's policy includes a guaranteed insurability rider, what does it allow him to do?

A guaranteed insurability rider allows Greg to purchase additional life insurance coverage at certain specified ages without having to provide proof of insurability. This is crucial because it ensures that Greg can increase his coverage regardless of any changes in his health status that may occur over time. This feature is particularly advantageous for individuals who may develop health issues that could otherwise impact their ability to secure additional insurance.

The rider typically specifies certain ages or life events (such as marriage or the birth of a child) when the policyholder can exercise this option. As a result, the guarantee of insurability provides financial security and flexibility, allowing Greg to adapt his life insurance needs as they change throughout different life stages.

The other options do not accurately describe the main benefit of the guaranteed insurability rider, as they either imply conditions about proof of insurability or do not align with the rider's intent to make acquiring additional insurance easier regardless of health changes.