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.

Risk budgeting includes all of the following except:
Option A:determining the target return.
Option B:quantifying tolerable risk by specific metrics.
Option C:allocating a portfolio by some risk characteristics of the investments.

Answer: A