Assuming that the following sentences are related to supply chain management, which alternative presents the correct sentences? I - The carriers a...

Assuming that the following sentences are related to supply chain management, which alternative presents the correct sentences?

I - The carriers are also considered suppliers and are responsible for moving materials between the links in the chain, so managing this important activity is crucial.
II - In the concept of the supply chain, the weakest link represents the strength of the entire chain, so if there is any failure during the execution of activities, the other links will be impacted.
III - Regardless of where suppliers are in the chain, as they are links, the failures they cause impact others.
IV - The supply chain has its greatest focus on the first part of the process, which is to ensure the supply of industries or retailers, but because they are links in a chain, the impacts of their decisions are also felt in the final phase of the chain, which is distribution.
A) I and II
B) II and III
C) II and IV
D) I, III and IV
E) II, III and IV