If Neese learns of Ohner's payment to Artisan on May 5, at the same time she learns of the written Artisan-Ohner contract, will she succeed in action against Ohner for $5,000?
No, because on May 3, Artisan and Ohner effectively modified their written contract, thereby depriving Neese of whatever right she may have had under that contract.
Yes, because she is an intended beneficiary of the written Artisan-Ohner contract. 
Yes, because the written Artisan-Ohner contract operated as an assignment to Neese, and Artisan thereby lost whatever rights he may have had to the $5,000. 
No, because Neese had not furnished any consideration to support Ohner's promise to pay $5,000 to her. 