Read the excerpt from The Code Book. A theoretical breakthrough would be a fundamentally new way of finding Alice's private key. Alice's private key consists of p and q, and these are found by factoring the public key, N. The standard approach is to check each prime number one at a time to see if it divides into N, but we know that this takes an unreasonable amount of time.

Which statement is best supported by this excerpt?

The author uses a narrative style to explain encryption.
The author includes several historical narratives.
The author adds many interesting descriptive details.
The author writes with great scientific detail.