Riddle

I am the type of room you cannot enter or leave. I rise from the ground below. I could be poisonous or a delicious treat. What am I?

Choose an answer

A.A cave
B.A basement
C.A greenhouse
D.Mushroom
Hint: It's a word with 8 letters, starting with "M".

Answer

Mushroom

Why this is the answer

'Mushroom' contains the word 'room,' rises up from the soil, and some varieties are edible while others are toxic.

This riddle is filed under "What Am I?" Riddles and rated Medium.