Respuesta :
For the first question, the correct answer is the first option. It is the Han dynasty who witnessed the invention of paper. Paper is one of the four great inventions of early China. For the second question, I think the correct answer is the third option. Authoritativeness is a factor in evaluating an online source.
1. The first papermaking process was documented in ancient China during the Eastern Han period (25–220 AD), the historian Fan Hua (398-445 CE) recorded that, a Chinese official, working in the Imperial court, named Cai Lun presented the newly-invented paper to the Emperor Hedi of the Eastern Han Dynasty in 105 CE.
2. In conducting internet research factor in evaluating an online source is authoritativeness.