Answer: b. You should adopt the automated lab because its total costs and error rate are smaller.
Step-by-step explanation:
You should adopt the lab that gives the lowest cost and this is the automated lab because it will have a lower cost due to its lower error rate.
Cost with Automated lab = 500,000 + 10 * 45,000
= $950,000
Cost with current lab = 400,000 + 15 * 45,000
= $1,075,000
Automated lab has a lower cost for the expected volume so should be adopted.