Tricky Case - have B2 visa; also have seaman's crew visa C1/D

[piplanih]

Hi gurus, need your help on this one:

I have a valid B1/B2 visa for multiple US entry. I'm also a seaman and have a valid crew C1D visa. I'm
planning to enter the US for a vacation (for 4 weeks) then return to India.
What visa should I show the immigration officer at entry? Does it matter where I enter the country at? If the
officer looks at both visa's, what should be my response?

thanks for your expert advice.
-Heerain

[balagar]

when you enter, you would need to fill out a I-94..in that you would put B2.
C1/D i-94 does not allow you to stay more than 30 days.