Given a text T, and several options, according to the question posed in the text T to choose the most appropriate option from the options as the answer, please directly output the most appropriate option, do not need to output the explanation.

Which of the following events can be represented as a Bernoulli trial?
Option A:The flip of a coin
Option B:The closing price of a stock
Option C:The picking of a random integer between 1 and 10

Answer: A