Select the correct description for each number set.(4 points)

a) (25−−√, 9, −−−√64−−√
)

b) ( -2.4, 0, 3.1, 81−−√
)

c) (−23, 79, π2
)

d) (12−−√, 11−−√, π
)
Tell me which ones are ONLY RATIONAL NUMBERS, ONLY IRRATIONAL NUMBER OR BOTH RATIONAL AND IRRATIONAL

a) both rational and irrational numbers

b) both rational and irrational numbers
c) only rational numbers
d) both rational and irrational numbers