When a chinese company tried to purchase unocal, it was perceived by some in the u. s. as a. a threat to sovereignty. b. an avenue for illegal immigration. c. a drain on the economy. d. a potential devaluing of the dollar. e. a sign that the chinese economy was stronger than the u. s. economy.

The answer is A. threat to sovereignty.

Explanation:

Unocal is Union Oil company of California. This is an organization which is like a body , comprises of many oil companies. Taking over of this organization by a foreign company will be a threat to US. This is because, the board of directors, agents, group and affiliates of Unocal will be controlled by the owner. And this will be a threat to supreme power of authority in US.