Which of the following options below correctly completes the two blanks in the following statement? In the chronic autoimmune response, the antigen is presented on molecules on the macrophage to ___ on the T cells to promote cytokine production and T cell activation

A. CD80; CD28 molecules
B. CD80; T cell receptors
C. MHC (MajorHistocompatibility Complex)); T cell receptors
D. MHC; CD28 receptors

Ahealthy 26-year-old woman sustained a significant crush injury to her right upper extremity while on the job at a local construction site. she was brought to the emergency department and subsequently underwent pinning and reconstructive surgery and received perioperative broad-spectrum antibiotics. her blood pressure remained normal throughout her hospital course. on the second hospital day, a medical consultant noted a marked increase in her creatinine, from 0.8 to 1.9 mg/dl. her urine output dropped to 20 ml/h. serum creatine kinase was ordered and reported as 3400 units/l. questions what are the primary causes of this patient’s acute kidney injury? how should her kidney injury be categorized (as prerenal, intrarenal, or postrenal)? how should she be treated?