Question

what are the two basic styles of firearm actions?
a single - shot and repeating
b repeating and bolt - action
c pump and semi - automatic
d single - shot and revolving

Explanation:

Firearm actions are categorized based on their loading and firing mechanisms. Single - shot firearms can fire only one round before reloading. Repeating firearms have a mechanism (like a magazine) that allows multiple rounds to be fired without reloading after each shot. Bolt - action (B) is a type of repeating action, not a basic style. Pump (C) is a mechanism within some repeating firearms. Revolving (D) is related to a specific type of repeating action (like a revolver), but single - shot and repeating are the overarching basic styles.

Answer:

A. single - shot and repeating