Write the next sentence in the following story.

How to embed a youtube video in powerpoint 2010 
Open the powerpoint presentation in which you want the youtube video inserted. 
Launch your internet browser and navigate to the youtube video you want embedded into your presentation. 
Click on " share " directly below the youtube video, then click on " embed.

Select from the following. a). " since the video you placed on your presentation will now appear in powerpoint 2010, you will be able to access it without going directly to file explorer in powerpoint 2007. Choose " share video " from the menu in the powerpoint monitor drive interface dropdown. b). If you're using the screen sliders to film, you only need to take a few seconds to double-click on " embed. " Download and install the embedded video file. c). The video's iframe code will display on-screen. Right-click on the video's iframe code, then select " copy. d). Select " insert video " from the drop-down list, and then click " next ". Copy a tab or sub-heading to your powerpoint presentation using the text tool under the insert tab.. The answer should be
c).