The answer is B. One of the most basic operations in glasswork is breaking glass to a desired length.
Options A, C and D do not make sense grammatically.
Answer:
A.
You cannot go straight ahead. You must
turn either to the left or right.
Explanation:
Found it on this study guide for road signs
https://www.puedomanejar.com/en/road-sign-study-guide/
