if a manufacturing firm builds products in batch of $200$ pieces at a time, what would be the improvemtn in thoughpu time if they made the transion to single peice flow? workstation Processing time per item

A $10$ seconds

B $35$ seconds

C $20$ secnods

D $15$ seconds

reminder: it is possible fro a process to have more than one bottleneck.

a: $78\mathrm{.}3\%$

b: $31\mathrm{.}4\%$

c: $61\mathrm{.}9\%$

d: $44\%$

e: $56\%$