ANECDOTE : AMUSEMENT::（） A: instruction : pedantry B: panegyric : disease C: epigram : edification D: lecture : pith E: catharsis : tension

In the secondary structure of roots, xylem rays and phloem rays belong to ( ). A: Secondary rays B: Vascular rays C: Pith rays

Pencil is to lead as______. () A: pen is to paper B: tube is to straw C: stem is to pith D: graphite is to mineral E: wood is to mill