Which of the following would be an IT steering committee's BEST course of action upon learning business units have been independently procuring cloud services?

Requiring cancellation without understanding business needs or providing alternatives can disrupt operations and alienate business units, potentially leading to further shadow IT.

While including business unit leadership in an EA review board is good for collaboration, it doesn't directly address the immediate issue of independent procurement or establish a procurement framework.

Limiting cloud usage to open source solutions is an arbitrary restriction that might not meet specific business requirements and could stifle innovation.

An IT steering committee needs to define a procurement strategy that acknowledges and incorporates business unit needs to gain control over independent cloud service procurement. This approach fosters collaboration, addresses shadow IT, and ensures that IT solutions meet business objectives while adhering to enterprise standards, security, and compliance requirements.