A. helped (The "ed" ending is pronounced /t/ in "helped," whereas in "achieved" and "walked" it is pronounced /d/.)

C. bright (The "i" is pronounced differently than in "ice-cream," "childish," and "fish.")

C. live (The "i" sound is different from the "i" sound in "like" and "life.")

A. decided (The "ed" ending is pronounced /ɪd/ in "decided," while it is /d/ or /t/ in "washed" and "arrives.")

B. travels (The "s" is pronounced /ɪz/ in "travels," whereas in "packs," "likes," and "rides" it is pronounced /s/.)

A. ride (The vowel sound in "ride" is different from the vowels in "climb," "like," and "swim.")