Help Please !!
If a person wanted to stimulate root growth on a plant cutting, he could apply synthetic to the stem.

a. abscisic acid
b. ethylene
c. gibberellin
d. auxin
e. strigolactone

d, auxins, Auxins are naturally occurring plant hormones. Different hormones perform specialized functions in plants, such as triggering ripe fruit to drop or retaining unripe fruit, elongating stems and stimulating root growth.

true is the final answer!

the contamination

we are putting to many trash.