While Automating a Process Involving a Browser Based Application a Popup

While automating a process involving a browser based application a popup window from the browser application appears that you need to work with. When you try to spy the popup window and its elements, Blue Prism throws the following error: "There was an error during the spying operation." Which of the following would be the most appropriate workaround?

A) Set the HKEY CURRENT USER\Software\Microsoft\Internet Explorer\Main\TabProcGrowth Registry key to 2
B) Change the scope of the process so that the popup window does not need to be automated
C) Create a new separate object that attaches to the running instance of the popup and attempt to spy elements with this object instead.
D) Use Surface Automation techniques to interface with the popup window