________ enter an area marked with diagonal white stripes or two sets of double solid yellow lines

Answer: C — Never

These markings indicate a space you must never enter. Diagonal white stripes outline a non-driving safety area, like a shoulder or median, where vehicles aren’t allowed to travel because it’s unsafe. Two sets of double solid yellow lines mean you may not cross them to enter the adjacent lane or space; crossing could put you in the opposite lane and create a head-on crash. So, the rule is never to enter these areas. The other options would suggest it’s sometimes allowed, but these markings enforce a strict, always-applied restriction.