Answer:
"I have taken all of the stress I can stand."
Explanation:
A line of dialogue is the exchange of words or the communication between two or more people. In written form, dialogues are typically put within inverted commas (" ") to specify the speech of a person.
Among the given sentences, an example of a line of speech is "I have taken all of the stress I can stand." This is easy to identify because of the use of the inverted commas to specify the spoken words. Moreover, the speech suggests that the speaker is in a conversation with another person(s).
Thus, the correct answer is the first option.
