Leaders are accountable to assemble teams and lead them to optimal performance outcomes. An effective leader recognizes the importance of embracing differences in people and knows how to connect the dots amongst those differences to get the best outcomes from the team. This is what cultivates a workplace environment of continuous improvements, innovation and initiative. Leaders must foster a commitment from the team to embrace an innovation mindset where each employee learns to apply the differences that exist in one another for their own success and that of the organization.
Can you choose more than one option?
Because a conclusion should not repeat word-for-word the introducion (this would make it actually pretty redundant), but other than this, it should be all of the remaining! (but if i had to choose one, I'd go with "summarize the main points- this would be most effective and most relevant./)
So my answer is: it should restate the thesis AND summarize the main points AND be imaginative
but it should NOT repeat the introduction word-for-word.