Guild Wars 2

Ok, just been in this mission where I am supposed to disable toxin containers before they dump goo into the Whitland Flats.

To start with, each of the containers gave me 3 options, seemingly totally random. Choose wrong, I get an electric shock, but I couldn’t see any way to tell which of the 3 options was correct before I chose one.

Then, they all went to a state where I couldn’t even get the choices menu up at all.

Can anyone tell me what I am supposed to do in this task?

I was there the other day very late in the event (45 seconds or so left), I only got rid of the green clouds with the special gun and got gold reward. Never did anything with the containers.