Lincoln's "10 Percent Plan" dealt with re-admitting Southern states into the Union. He offered to pardon Confederates who would take an oath to support the Union. When ten percent of a state's citizens eligible to vote in 1860 swore an oath of allegiance to the U.S. that state had abolished slavery, he promised to readmit the state to the Union.
The 10% plan was a plan for reconstruction in the south. Each southern state had to have 10% of their citizens say that they would be loyal to the U.S. The answer would be C. Readmitting southern states into the Union.
The attitude of respect and the devotion to ones family observed in Chinese society especially in the imperial period is known as "filial piety," although other terms are relevant as well.
