What was the reason the united states was drawn into a war in vietnam?

a.
the united states was trying to stop european colonialism in the region.

b.
the united states wanted to compete with china for trade in the region.

c.
the united states was eager to establish its own colonies in the region.

d.
the united states wanted to prevent the spread of communism in the region.

Janette goes into an electronics superstore to buy a new computer. the salesperson works with her to find the right model, and she agrees to buy a new computer for $500 and a floor-model 18-inch monitor for $100. just when she is ready to pay, the salesperson walks away for a minute and then comes back to inform her that the monitor she was ready to purchase can't be sold for < $125. she agrees to the extra $25 even though they had initially agreed on the $100 selling price. janette has fallen for the technique of gaining compliance.