What do generics start with?

• A. Generic beginning with A
• B. Two-letter code beginning with A or B
• C. Generic beginning with B
• D. Generic beginning with BD

Answer: (B)

Generics are identified by a two-character prefix, not a single letter or a fixed string. This prefix must begin with either A or B, so the defining pattern is a two-letter code that starts with A or B. That makes the description of how they begin: a two-letter code beginning with A or B.

This is why it’s the best choice: it accurately describes the general naming convention that applies to all generics, not just a specific instance. It also accommodates the full range of valid prefixes (like AB, AC, BA, BB, etc.), rather than tying the start to a single letter or a fixed code such as BD.

The other descriptions are too narrow or too specific: one-letter beginnings exclude those that start with the other letter; focusing on a single starting letter misses half the valid prefixes; and naming the code as BD describes only one possible prefix, not the general two-letter rule.