In which sentence is the nonessential clause underlined?
(1 point)
A.) The man leaning against the wall is from the zoo. ( underlined words are "leaning against the wall" )
B.) The snake that he is holding is not poisonous. ( underlined words are "that he is holding" )
C.) Its coloring, which is brown and green, allows it to hide in marshy areas. ( underlined words are "which is brown and green" )
D.) That snake slithering behind the rock is actually harmless. ( underlined words are "slithering behind the rock" )