Abdul has applied styles to a line of text in his word document and he would like to revert it to the normal style.

which actions will achieve this result?

selecting normal from the quick styles gallery
expanding the quick styles gallery and select normal
pressing ctrl+shift+n
all of the above

d) All of the above

Explanation:

Abdul has applied new styles to a line of text in his Word document and he would like to revert it to the Normal style.  

To solve that, we have to look at each option.

Selecting Normal from the Quick Styles Gallery (Option 1):

In word, if you want to go to normal styling, you have to click on the normal styling. The shortest way to do is by using the Quick styles. In quick styles, you can select the normal style to revert the styling. Therefore, this option is True

Expanding the Quick Styles Gallery and select Normal (Option 2):

This is just the expansion of option 1. In this case, you are just expanding the quick styles and then selecting the normal style to revert the changes. Therefore, this option is alos True.

Pressing CTRL+SHIFT+N (Option 3):

There exist shortcuts in Word to perform a specific task. Generally, the shortcuts are single or multiple key combination. The key combination (CTRL+SHIFT+N) is also used to revert the changes to normal styling. Therefore, this option is also True.

Hence, all of the above choices are true.