Maximus Ltd uses a standard costing system. The following information pertains to direct materials for the month of July:

Standard price per kg	18.00
Actual purchase price per kg	16.50
Quantity purchased	3 100 kg
Quantity used	2 950 kg
Standard quantity allowed for actual output	3 000 kg
Actual output	1 000 units

What is the materials usage variance for Maximus Ltd?

a. 1 850 (Favourable)

b. 900 (Adverse)

c. 2 850 (Favourable)

d. 900 (Favourable)