Choose analogous pair - Rectangle : Pentagon

C. TRIANGLE : RECTANGLE

Choose analogous pair - Iodine : Goitre

A. INSULIN : DIABETES

Choose analogous pair - Defunct : Life

A. STAGNANT : MOTION

Choose analogous pair - Presumption : Certainty

B. HEARSAY : AUTHENTICITY

Choose analogous pair - Chalk : Blackboard

C. INK : PAPER