Which of the following cases is an example of failed intercultural communication？
选项：

A:

Using the “thumb-up” gesture to communicate the meaning of “good job” in all intercultural context.

B:

Lowering your voice volume when speaking with people who speak softly.

C:

Spending a considerable amount of time to learn a second language.

D:

Observing the verbal and nonverbal response people give to you in intercultural communication.