Akey tool to achieving your social marketing goals is a strong which acts as a game plan for coordinating, creating, and distributing your organization’s

A key tool to achieving your social marketing goals is a strong content strategy which acts as a game plan for coordinating, creating, and distributing your organization’s content.

Explanation:

Content:

Content is a picture or video or a piece of writing or anything else that is used to promote your business, recognition of your brand, lead generation etc. on social media platforms  

Content Strategy:

It is a well organized and effective plan that helps you to post and share your content at ideal time to increase your business and other goals defined by you. Without, content strategy, the content will not achieve its purpose and will result in the failure of your goal and damage of your resources.  

hi there, i would say your answer is:

b. there is a fixed quantity of resources and technology available.

hope that : )