Explanation:
To remove the content of selected cells in a spreadsheet, the correct command to use is "Clear Contents". This command is used to clear the data within the selected cells while keeping the formatting intact.

Here is a detailed explanation of the available options and why "Clear Contents" is the correct choice:

1. Delete:
The "Delete" command is used to permanently remove entire rows, columns, or cells from the spreadsheet. It not only removes the content but also deletes the cells themselves. This is not the desired action if the goal is to only remove the content while preserving the cell structure.

2. Clear All:
The "Clear All" command removes both the content and the formatting of the selected cells. It completely clears all the data and formatting, returning the cells to their default state. This is not the desired action if you want to keep the formatting intact.

3. Clear:
The "Clear" command is a general option that allows you to choose what elements to clear within the selected cells. It provides options to clear contents, formatting, hyperlinks, comments, and more. To remove the content while preserving the formatting, you need to specifically choose the "Clear Contents" option.

4. Clear Contents:
The "Clear Contents" command is designed to remove only the content within the selected cells, while leaving the formatting, formulas, and other cell properties intact. It is the correct command to use when you want to delete the data but keep the structure and appearance of the cells.

Therefore, the correct command to remove the content of selected cells is "Clear Contents" (option B). It allows you to delete the data while preserving the formatting and other cell properties.