Hello, can someone help me identify how to use the MRTs by using the table below? Your answer will be very appreciated! Thank you

Table Ill. Determining the Marginal Rate of Technical Substitution (MRTS) Combination Capital (K) Labor (L) MRTSK,L Output A 15 1 80 B 11 2 80 C 8 3 80 D 5 4 80 E 1 5 80 A. What is the MRTS KL from A to B B. What is the MRTS x, from B to D? C. What is the MRTS kL from E to D? D. What is the MRTS , from A to C? E. What is the MRTS , from C to D