Sentence Completion

1- "The West Nile virus, which is transmitted to humans by mosquitoes, can be deadly in some cases, .................."

A- even if infected people have weakened immune system

B- once some common-sense precautions have been taken for protection

C- but fortunately most people infected with it are not likely to become seriously ill

D- despite the lack of medications to treat or vaccines to prevent infection

E- provided that people avoid contact with mosquitoes

My answer is C?

2- " While the professor has promised to crticize my article fairly, ..........................."

A- the problems he found in it really do need correcting

B- he is likely to be true to his word in the next couple of days

C- his comments upon it show unnecessary spite

D- it is going to be published in the university's magazine

E- I ought to try and be less distrustful of his intentions towards it

My answer is C?