X Company uses the high-low method to estimate total overhead costs each month, with machine hours as the activity measure. The following past monthly cost and activity information is available: Month May Cost $8,646 Machine Hours 2,650 June $11,157 4,000 July $11,808 August $10,785 4,350 3,800 If machine hours in October are expected to be 2,850, what are estimated total overhead costs in October [round unit costs to two decimal places]? A: $3,833 B: $5,098 C: $6,780 OD: $9,018 OE: $11,994 OF: $15,952