Are the following allowable expenses (please list Yes or No clearly - such as, "Yes, this is allowable, because___)?Why or why not?

a)An agency decides to award a vendor $1,000,000 to perform accounting services on a one-year appropriation.The appropriation is for Fiscal year 2014.The award is made on October 2, 2014.The appropriation allows using the funds for accounting services.

b)For a no-year appropriation, could the agency start a new obligation starting on October 24, 2015?The obligation would be for goods/services that would be a use listed in the appropriation, and would be above the amount remaining on the appropriation.

c)An agency has a multi-year appropriation, from Beg. Budget Fiscal Years 2012-Budget Year 2014.The agency awarded a vendor a contractor on October 1, 2013 for an item listed in the appropriation. The vendor identified an invoice for work performed in November 2013, and requested payment on January 5, 2015.Is the payment allowable?