Appeal from an order terminating respondent's parental rights; whether the trial court abused its discretion by failing to sua sponte conduct an inquiry into whether respondent should be appointed a guardian ad litem under Rule 17 of the North Carolina Rules of Civil Procedure; whether the evidence supports the trial court's findings of fact and whether the findings of fact support its conclusion that respondent's parental rights should be terminated pursuant to N.C.G.S. 7B-1111(a)(1) (2019); whether the trial court abused its discretion in concluding that it was in the children's best interests that respondent's parental rights be terminated.