Read these lines from trees need not walk the earth. here among the children of the sap is no pride of ancestry: a birch may wear no less the morning than an oak. here are no heirlooms 10 save those of loveliness, in which each tree is kingly in its heritage of grace. the word heir comes from the latin heredem which refers to "one who inherits, or has right of inheritance in, the property of another." given this information, choose the most likely meaning of heirloom in this sentence.
a. a state of mind
b. a valuable item
c. a season in time
d. an object in nature