Ram of Allahabad filed a petition in the court for adjudication as insolvent. At that time one month's salary due to five clerks amounted to Rs. 2,000, one month's wages due to ten workers amounted to Rs. 1,500, rent and rates due amounted to Rs. 500. Income tax due amounted to Rs. 1,200 and one month's rent due amounted to Rs. 1,000. The amount of preferential creditors would be:

Answer: Option D