OPTION 4Explanation:1) (R ∧ E) ⟺ C says that all (and only) conservatives are radical and electable. So, this ASSERTION is not true.2) R ⇒ (E ⇔ C) says that same as the given assertion. This is a correct assertion.3) R ⇒ ((C ⇒ E) V ¬E) = ¬R∨(¬C∨E∨ ¬E) which is true for all INTERPRETATIONS. This is not a correct assertion.4) ( ¬ R V ¬ E V C) ∧ (¬ R V ¬ C V E) = (¬ RV( E⇒ C)) ∧ (¬ R V (C ⇒ E)) = R ⇒ (E ⇔ C) which is equivalent to assertion B. This is also true.