By establishing a connection between social media management tools and efficiency, the brand doesn't just want to know how many tools you are familiar with but also want to ensure how you are going to ensure efficiency using those tools. Hence, the best possible way to answer this question is to talk about how businesses have been using these tools not only to build trust but also to sell their products or services both online and offline. On top of that, you can also emphasize the way these tools have also helped them save time, communicate with their customers properly, create a structure that can be completed in time and increase the efficiency of a business overall. To conclude your answer, you can give a few examples of OptinMonster, Audiense, Tweepi, and others that have made marketing easier and far more efficient with their presence.