which of the following sourcing strategy leads to the outcome of long-term partnering relationship.  A. Multiple sourcing  B. Single sourcing  C. Delegated sourcing  D. Parallel sourcing

The sourcing strategy that leads to the outcome of a long-term partnering relationship is B. Single sourcing.

Here's why:

A. Multiple sourcing: This strategy involves using several suppliers for the same product. This can lead to competition among suppliers, but it doesn't necessarily foster long-term relationships.

B. Single sourcing: This strategy involves using only one supplier for a product. This often leads to a long-term partnering relationship because the company and supplier are reliant on each other.

C. Delegated sourcing: This strategy involves delegating the sourcing responsibility to another company. While this can lead to a long-term relationship with the company handling the sourcing, it doesn't necessarily lead to a long-term relationship with the supplier.

D. Parallel sourcing: This strategy involves using two suppliers for the same product. Like multiple sourcing, this can lead to competition among suppliers, but it doesn't necessarily foster long-term relationships.