Productivity is the average output per worker per unit of time. High

Productivity is the average output per worker per unit of time. High productivity cannot be achieved without adequate training of workers. So high productivity does not depend on having high-tech equipment.

Boil it down-
adequate training of workers is a necessary condition for high productivity
High productivity can be reached ---> Adequate training of workers
Therefore, High productivity does not depend on having high tech equipment

Maybe high tech equipment is another necessary condition of high productivity being reached.

Type- flaw

(A) confuses a stated requirement for having high-tech equipment with a sufficient condition for having high-tech equipment - incorrect; notice that what is at issue here is the conclusion of high tech equipment and how the arguer reached that conclusion. This answer choice is talking about a necessary condition of high prod. being reached, which is adequate training.
(B) ignores the possibility that having high-tech equipment is required for adequate training of workers - Correct; High productivity may in fact depend on high tech equipment. We know high productivity requires adequate training
(C) overlooks the fact that increases in productivity may not be desirable in some circumstances - irrelevant - desirability is not discussed
(D) presumes without giving justification that educating workers always results in an increase in their productivity - incorrect - it mixes sufficient condition and necessary condition
(E) presumes without giving justification that high-tech equipment cannot contribute to increases in productivity - incorrect; it is not assumed but is explicitly stated


Answer B