During 2018 Alex Manufacturing expected to produce 100,000 units with $400,000 of estimated overhead, $600,000 of material, and $300,000 in labor. Actual production was 110,000 units with an actual overhead cost of $350,000, $570,000 in materials used; and $220,000 in labor. What is the amount of over/under applied overhead? 0 a. $50,000 underapplied O 1:). $50,000 overapplied O c. $90,000 underapplied Q d. $90,000 overapplied