How does the author develop the idea that the current high-tech toilet design may someday be affordable for consumers?

Why are reading and writing necessary in today’s world

Could someone me with this question?

Match each stanza structure to the correct term. a stanza of two lines quatrain a stanza of four lines octave a stanza of six lines couplet a stanza of eight lines sestet arrowboth arrowboth arrowboth arrowboth