Choose analogous pair - Expend : Replenism

C. DEFECT : REJOIN

Choose analogous pair - Patriotism : Citizens

C. CONCENTRATION : STUDENTS

Choose analogous pair - Propensity : Tendency

C. AUDACITY : IMPUDENCE

Choose analogous pair - Triangle : Hexagon

B. RECTANGLE : OCTAGON

Choose analogous pair - Stationary : Mobile

D. QUACK : EXPERT