Where can money orders be purchased?

Money orders are primarily issued by postal services, which include post offices, making them a reliable and secure place for customers to purchase money orders. Additionally, rural route carriers are part of the postal service system, providing access to money order purchases for customers in rural areas who may not have a nearby post office. This reflects the postal service's commitment to offering financial services to all communities.

While other venues, such as convenience stores, gas stations, grocery stores, and pharmacies, may also sell money orders, they are not the primary option associated with money orders given their assurance of secure financial transactions. Purchasing online through bank websites is valid for other financial services but does not typically apply to money orders in the context of traditional postal services. Thus, the post office and rural route carriers stand out as the correct answer.