Explanation:

The correct answer is option 'C' - "your".

In this sentence, the speaker is referring to a group of people and stating that some of them will have to bear their own responsibility. The pronoun "your" is used to address or refer to the people in the group, indicating that they will need to take responsibility for their own actions.

Let's break down the options to understand why the other choices are incorrect:

a) "his" - This pronoun is used to refer to a singular male person. However, the sentence indicates that it is referring to a group of people rather than a specific individual.

b) "her" - This pronoun is used to refer to a singular female person. Similar to option 'a', it does not match the plural group of people mentioned in the sentence.

c) "your" - This pronoun is used to address or refer to a group of people. It is suitable in this context as it implies that each person in the group will have to bear their own responsibility.

d) "no error" - This option suggests that there is no error in the given sentence. However, the pronoun "your" is the correct choice to address a group of people, making option 'd' incorrect.

Therefore, the correct answer is option 'C' - "your", as it appropriately refers to the group of people in the sentence.