That might be correct, although I would've thought they would put the diamonds on the individual lines like in the course spec, but that might've been more confusing.I thought since its conditional, module 2 and 3 can be skipped if the condition is not met?
However, it seems that the diagram should be read from left to right, but in B, module 3 is executed before module 2, which doesn't make sense if read in that way. But it's been some time since I last read one of these diagrams so I might be interpreting it wrong.