How to bend rebar<br>Understand the structural issues possible with manually-bent rebar and know how to avoid them. When you bend metal, you naturally weaken it. When done correctly, however, you can minimize damage and still get the shape you need to complete the project.

Based on that paragraph can we conclude that this sentence is true?
rebar is a technique learned by hank

Available choices:
(a). Yes
(b). It's impossible to say
(c). No
(b).