Choose from the options the word that has the same vowel sound as the one represented by the letter(s) underlined?

Research

Choose the option that has the same vowel sound as the one represented by the letters underlined.

Pleasure

From the words lettered A to D, choose the word that has the same vowel sound as the one represented by the letter(s) underlined

berth

Choose the option that has the same vowel sound as the one represented by the letter(s) underlined. 

youth

From the words lettered A to D, choose the word that has the same vowel sound as the one represented by the letter(s) underlined. 

pearl