Oral means "spoken instead of written,by word of mouth." So the most likely answer is C. it's recited from memory. Examples of that would be Greek mythology,folklore,or legends. For the hundreds of years those were mainly passed down by word of mouth, from memory.
<span>The answers are hardy and profuse. Hardy refers to the survival capabilities of the garden, and profuse refers to the ability of the garden to provide an abundance of flowers the next spring. The other answers do not make sense when reading in context.</span>