Concept:
Pottery techniques evolved historically from ancient decorative methods to modern industrial ceramic technologies.
•
Step 1:
The Black figure technique originated in Ancient Greece around the:
\[
7^{th} \text{ century BCE}
\]
It is one of the earliest ceramic decorative styles.
•
Step 2:
Sgraffito developed later as a decorative scratching technique used widely in medieval ceramics.
•
Step 3:
Northern Black Polished Ware belongs to ancient Indian ceramic tradition around:
\[
700 - 200 \text{ BCE}
\]
•
Step 4:
Slip casting emerged much later with industrial ceramic production methods.
•
Step 5:
Electric wheel throwing is a modern technological development in ceramics.
\[
\boxed{\text{(2) B, A, E, C, D}}
\]