(E8-1) Alerin Corporation was established on January 1, 2003. During 2003, the company experienced the following: a. Credit sales: $100,000 b. Collections on credit sales: $60,000 c. Write-offs of accounts deemed uncollectible: $4,000 d. Aging analysis of accounts deemed uncollectible at December 31, 2003, shows $8,000 of potentially uncollectible accounts. Required: a. Prepare entries for parts (a) through (d) assuming Alerin uses the allowance method (aging approach). b. Compute the following at year-end: 1. Net accounts receivable 2. Bad debt expense