What is the largest key length for the Blowfish symmetric-key block cipher?

What is the largest key length for the Blowfish symmetric-key block cipher?

• 512 bits
• 448 bits
• 224 bits
• 256 bits 

EXPLANATION

The maximum size of the key in blowfish algorithm is 56 bytes or 448 bits. Explanation: The size of the blocks of the plaintext is 64 bits each.