Choose the most appropriate word from the options given below to complete the following sentence. Many ancient cultures attributed disease to supernatural causes. However, modern science has largely helped ________ such notions. A. Impel B. Dispel C. Propel D. Repel

GATE 2014 · General Aptitude · Most Appropriate Word · medium

Answer: B. Dispel

1. Analyse the meaning context: Modern science overcame/eliminated supernatural notions. The verb must mean: 'cause abstract beliefs to disappear'. Impel = push someone to act; Propel = drive forward; Repel = push physically back or cause disgust. None of these collocate naturally with 'notions'.
2. Confirm dispel with collocation test: 'Modern science has helped dispel such notions' — this is a standard English construction. 'Dispel a notion/myth/fear/doubt' is a well-established collocation.