You are developing a Windows Store app. The app consumes data from a popular social networking site. The requestUri variable represents the address of the social networking site. The code contains…

You are developing a Windows Store app. The app consumes data from a popular social networking site. The requestUri variable represents the address of the social networking site. The code contains an error. You need to identify the cause of the error. You have the following code. (Line numbers are included for reference only.) Which line of code should you identify?