Unable to see. Camouflaged. Blended in with. I think that’s what you mean sorry if I’m wrong.
Both A and D are really close though.I'm leaning more toward D, since it mentions more about getting in the way of the German troops.
Example 1: "There, she helped to set up more resistance groups and organize sabotage actions."
<span>Example 2: "Her actions, along with those of her colleagues, often delayed the arrival of German reinforcements to the front lines of battle."</span>
The ladies are part of a missionary circle yet they just gossip and think poorly of everyone else in the community.
