Read the following sentence: places such as stonehenge and area 51 are enigmatic. using context clues, what does enigmatic mean?

Which sentence contains a correctly used participial phrase? a) camping by the lakeside, the cries of geese kept me awake. b) after brushing on another stroke of fiery crimson, the canvas looked complete. c) peering through the rain spattered window, the scenery appeared lush and verdant. d) kicking the ball into the upper left hand corner of the goal, the striker scored the winning goal.