This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
A 40 year old female patient complains of painless anterior neck mass. She has a history of hypothyroidism. Her blood work suggests increased TSH levels and decreased T3 and T4 levels. Circulating thyroid autoantibodies are also confirmed. The patient is suffering from 
Select and explain. 
A. De Quervain's thyroiditis, B. Riedel's thyroiditis, C. Hashimoto’s thyroiditis, D. None of the above
C: Hashimoto’s thyroiditis
Answer: C: Hashimoto’s thyroiditis 
Explanation: None