Choose the letter A, B, C, or D to indicate the word that differs from the other three in the position of primary stress

Choose the letter A, B, C, or D to indicate the word that differs from the other three in the position of primary stress:
1.A.donate B.provibe C.listen D.collect
2.A.sickness B.feelings C.contain D.language
3.A.vitamin B.obesity C.computer D.depression
4.A.father B.lesson C.repair D.woman
5.A.tradition B.medium C.popular D.different
6.A.cancer B.export C.correct D.attract
Choose the letter A, B, C, or D to indicate the word whose underlined part differs from the other three in pronunciation:
7.A.was B.wall. C.walk. D.water
8.A.painter B.prefer C.concert D.perform
9.A.hat B.map C.what D.cap
10.A.collection B.tradition C.exhibition D.question
11.A.erase B.prefer C.concert D.perform
12.A.sport B.fork C.soft D.pork
13.A.occasion B.television C.leisure D.musician
14.A.heard B.pearl C.heart D.earth
15.A.giant B.target C.figure D.garbage
16.A.bird B.hurt C.burn D.singer
17.A.answer B.teacher C.birth D.brother
18.A.community B.collection C.certainly D.education
19.A.attended B.cleaned C.visited D.started