The application that helps you to write a letter and print it out on paper?

Select the align center icon in the toolbar that can make

Center aligning text

Select the text color icon in the toolbar that can make word have different color

Select the font size icon in the toolbar that can make a word have a large-sized font or small.

Select the Bold icon in the toolbar that can make a word have a heavier font

Select the underline icon in the toolbar that can draw a line below the words

Select the Italic icon in the toolbar that can change words to an italic font

Select the Text Highlight color icon in the toolbar that can change words like is was marked with a highlighter pen.

The key on the keyboard that can make a new line for typing is?