Explanation:

Let's break down the logical sequence needed for sending an email:

- 3. Start computer: This is always the first step—you need a working computer.

- 1. Open email account: After the computer is on, you need to access your email account.

- 4. Enter email address: In email, you need to enter the recipient’s address.

- 2. Compose email: Select compose to start writing a new email.

- 5. Write the content: Enter the main message in the email body.

- 6. Send the mail: Finally, send your composed email.

Now looking at your given options:

1. Option 1 (3, 1, 2, 4, 5, 6): Correctly follows starting the computer, opening email account, composing, entering address, writing, and sending.

2. Option 2 (2, 5, 1, 3, 4, 6): Starts with "Compose email" before even starting the computer or opening the account—illogical.

3. Option 3 (3, 2, 6, 1, 5, 4): Jumbled order, sending email before the necessary steps.

4. Option 4 (3, 1, 2, 6, 5, 4): Sending before writing content and entering address.

Correct Answer: Option 1 (3, 1, 2, 4, 5, 6)