gma Technology is a company based in Singapore, with branches in $24$ countries. It needs multiple CAs in different ations to verify and sign digital certificates for the company. They are looking for an option where, even in the sence of a CA$,$ other CAs can issue the certificates. Additionally, they are also looking for CAs who will overlook er CAs in different locations. In such a scenario, which PKI trust model should they use?

Distributed trust model

Bridge trust mode

Hierarchical trust model

Web of trust model