Which of the following is considered a strong, secure password?

A strong, secure password should be complex and unique, incorporating a mix of upper and lowercase letters, numbers, and special characters, while avoiding easily guessable patterns or common words. The option that represents this best is the one featuring "I have a lovely bunch of coconuts 2."

This password is advantageous because it combines a phrase with a creative structure, making it longer and more difficult to crack through brute-force methods. The inclusion of a special character, a mix of capitalization, and a meaningful yet unconventional phrase contribute to its strength.

In contrast, the other options fall short. "Password123" is a weak password due to its commonness and predictable format. "12345678" is one of the most widely used passwords, making it easily guessable. "Summer2020" may indicate a specific time, which could be associated with personal information, thus reducing its security. Therefore, the selected option stands out as the most robust choice.