The disadvantage of classifying personalities into specific types is that these types

a. don't really exist.
b. oversimplify personality.
c. are fairly unstable.
d. all describe abnormal behavior.

The disadvantage is: b. oversimplify personality

Explanation:

Classification tends to generalize and by doing this, subjetive or singular information from each person can be missed. A generalization tends to simplify things, in order to give a diagnosis. Personality is more complex than what some catogories can define.

in this part of the declaration it refers to the point when american people didn't recognize the british domain and   breaks the political bands with britain, they forced a respectful separation.

mankind was created and entitled equally with rights   which were life, freedom and the seeking for happiness.

can you explain it better