Why was cai lun's invention of cellulose-based paper so significant?

cai lun's invention of cellulose-based paper was so significant because it enabled the spread of literacy through China. The spread of literacy such as confucian and taoism served to instil a sense of public order which made the early civillization to be preserved for several years.

Which explains why the National Women's Party was successful in their suffrage movement? 

It used aggressive protest tactics on a countrywide (nationwide) level, instead of state-by-state. 

It marked the first time women had worked together to gain the vote.

 It had the benefit of strong leaders, which had not been the case during previous suffrage movements.

 It recruited women to support the Republican Party, which helped the movement gain wider male support. 

Your answer would be (A)

It used aggressive protest tactics on a countrywide (nationwide) level, instead of state-by-state.