Final answer:
The factors contributing to dissent in China by the end of the 1980s included economic inflation, student demands for greater democracy, concern about the Communist Party's aging leadership, and widespread corruption and nepotism among Communist Party leaders, excluding fear of American nuclear attack.
Step-by-step explanation:
By the end of the 1980s, all of the following were contributing to dissent in China except:
- fear of American nuclear attack.
- economic inflation which was reducing the real wages of salaried workers.
- student demands for greater democracy.
- concern about the Communist Party's aging leadership.
- widespread corruption and nepotism among Communist Party leaders.
The correct answer is a) fear of American nuclear attack. The other options listed - economic inflation, student demands for greater democracy, concern about the Communist Party's aging leadership, and widespread corruption and nepotism - were all contributing factors to dissent in China during the late 1980s.