Where can the topic sentence of a paragraph be found?

In the first sentence.

in the spreadsheet, click on a cell, then type the numbers or text you want and press enter or tab. to write data to a new line within a cell, press alt + enter. to enter the same data in several cells at the same time you must select the cells in which you want to enter the same data, in the active cell write the data and press ctrl + enter.

i took this test im trying to remember i think it is the first one im super sorry if i remembered wrong!