stud grade dimensional lumber typically has\na no wane or defects.\nb some obvious defects.\nc small tight…

Brief Explanations:

Stud - grade dimensional lumber is a common - use lumber in construction. It may have small tight knots, but not no wane or defects (it's not a high - grade finish lumber), and it doesn't have some obvious defects as that would make it unsuitable for most stud applications. It also doesn't have a smooth finished surface as it's mainly for structural purposes.

Answer:

C. small tight knots, if any.