Final Answer:
The remittance sent by foreign workers is through international wire transfers. Therefore, the correct option is a).
Step-by-step explanation:
Foreign workers typically send remittances through international wire transfers (Option a). This method involves electronically transferring funds from the sender's bank account to the recipient's bank account, often across borders. It is a secure and efficient way to send money internationally, providing a direct and reliable means of financial support to families and loved ones in their home countries.
International wire transfers are facilitated by financial institutions, which ensures the swift and secure movement of funds. This method is favored for its convenience and speed, allowing foreign workers to send remittances efficiently, contributing to the economic well-being of their families back home. The use of banking infrastructure in this process adds a layer of security, reducing the risks associated with carrying physical cash or relying on traditional mailing systems.
While other options, such as mailing checks, using mobile payment apps, or carrying cash personally (Options b, c, and d), exist, international wire transfers are often preferred due to their reliability, traceability, and the speed with which funds can be delivered to recipients. This method aligns with the demands of modern global finance, providing a streamlined and secure way for foreign workers to support their families economically.