(A) Aho, a Kiowa matriarch, held festivals in her home, they featured
(B) Festivals were held in Aho, a Kiowa matriarchs home, which featured
(C) Aho, who was a Kiowa matriarch in her home, held festivals featuring
(D) In her home, Aho, a Kiowa matriarch, held festivals that featured
(E) Aho, a Kiowa matriarch, held festivals in her home that featured
Solution:
Subject-verb + Modifier
A can be eliminated for the wrong usage of they for Aho.
B and E can be eliminated as they change the meaning of the sentence; which and that refer to home rather than to festivals.
C is wordy.
D is the best choice.
Sentence Correction - 1000 Questions with Solution: