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.

In the case of a normal good with a decrease in own price, which of the following statements is most likely true?
Option A:Both the substitution and income effects lead to an increase in the quantity purchased.
Option B:The substitution effect leads to an increase in the quantity purchased, while the income effect has no impact.
Option C:The substitution effect leads to an increase in the quantity purchased, while the income effect leads to a decrease.

Answer: A