Final answer:
None of the offered shortcuts A, B, C, or D would capitalize a letter in standard text-editing software. Instead, you would use the Shift key while typing the letter to capitalize it, or use a software function.
Step-by-step explanation:
To capitalize the letter under the cursor or the first letter of the next word, leaving the rest of the word unaffected, none of the provided shortcuts (A. Alt + Shift + U, B. Ctrl + Alt + U, C. Ctrl + Shift + X, D. Ctrl + U) is typically correct in standard text-editing software. Instead, the common way to capitalize a letter is to place the cursor at the beginning of the word and use the Shift key while typing the letter you wish to capitalize. If the entire word is already in lowercase and you want to capitalize the first letter without using the mouse or arrow keys, there isn't a universal shortcut; you'd need to delete and retype the letter in uppercase or use a specific software function. However, some advanced text editors and word processing software may allow for custom shortcuts to be set.
To perform other common editing tasks, you can use the following shortcuts:
- To change to lowercase: There is no standard keyboard shortcut, but you can use a function in the editing software.
- To insert a period: Simply press the period key.
- To insert a comma: Press the comma key.
- To insert an apostrophe: Press the apostrophe key.
- To insert quotation marks: Press the Shift key along with the apostrophe key (usually).
- To insert space or close up space: Press the spacebar to insert a space, use the backspace key to close up space.
- To transpose letters or words: This typically requires manual editing.
- To start a new paragraph: Press the Enter or Return key.
- To check spelling: Use the spell check function, often accessible with F7 or through a menu.
- To move right or move left within text: Use the arrow keys.