Answer:
d) $530,000
Explanation:
The computation of the total manufacturing cost for the march month is shown below
= Fixed manufacturing cost + (produced tons × variable manufacturing cost per ton)
= $50,000 + (40,000 Tons × $12.00 per ton)
= $50,000 + $480,000
= $530,000
hence, the total manufacturing cost for the march month is $530,000
Therefore the correct option is d.