Use the Information Below to Answer the Following Question(s)

Multiple Choice

Use the information below to answer the following question(s) .A company makes table lamps, for which the following standards have been developed:
During January, production of 100 lamps was expected, but 110 lamps were actually completed.Direct materials purchased and used were 2,100 kilograms at an actual price of $2.20 per kilogram.Direct labour cost for the month was $5,310, and the actual pay per hour was $9.00.
-The direct-material rate variance for January is

A) $420 unfavourable.
B) $420 favourable.
C) $400 favourable.
D) $400 unfavourable.
E) $20 favourable.