Multiple choice

We must understand: the causes of poor candidate selection,

  1. and it's short and long-term effects on the business

  2. it's short and long-term effects on employees

  3. its short & long-term effects & impacts of skill shortages

  4. and the impact it has on the business

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The sentence structure requires a parallel construction to complete the list of what we must understand. Option C correctly maintains the grammatical flow and includes the necessary components of the list.