SSC CHSL 03 July 2024 Shift 2 Paper

In this question, three statements are given, followed by three conclusions numbered I, II and III. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusion(s) logically follows/follow from the statements.
Statements:
No pen is a scale.
All scales are erasers.
All pens are calculators.
Conclusions:
I. Some erasers are calculators.
II. No pen is an eraser.
III. No scale is a calculator.