The time in life when sexual organs mature and one becomes capable of the reproductive function is called: menarche
puberty
senescence
transition

so are we writing a song for you or are we making characters for you.

type of error:

the error in the sentence is a "dangling modifier". a dangling modifier is a phrase, word or clause that "dangles" because there is not target to modify. in this case, "after mopping the floor" is the dangling modifier since it has no word to modify. the noun "house" cannot mop the floor; therefore there is a mistake in the writing of the sentence.