Expectations or demands that we behave in a certain way are likely to cause stress due to pressure to conform frustration at not being able to do what we want anxiety changing how we behave

All of the options mentioned can cause stress when there are expectations or demands to behave in a certain way.

1. Pressure to conform: This can cause stress as individuals may feel they have to change or suppress their true selves in order to fit in. This can lead to feelings of discomfort and unease, which can manifest as stress.

2. Frustration at not being able to do what we want: When expectations or demands limit our actions or choices, it can lead to frustration. This frustration can then lead to stress, especially if the individual feels trapped or powerless.

3. Anxiety: Expectations or demands can cause anxiety, especially if the individual is unsure if they can meet these expectations or demands. This uncertainty and fear of failure can cause significant stress.

4. Changing how we behave: Changing one's behavior can be a difficult and uncomfortable process. This discomfort can cause stress, especially if the individual feels they are being forced to change against their will.

So, all of these factors - pressure to conform, frustration at not being able to do what we want, anxiety, and changing how we behave - can cause stress when there are expectations or demands to behave in a certain way.