Which of the following is true of mumps –
"Aseptic meningitis may develop before, during, after or in the absence of parotids." - Harrison 17th/e-1220
About other options

Mainly parotid glands are involved, but sublingual and submaxillary glands may also be involved.
The patient is infectious 4-6 days before the onset of swelling.
Sterility after mumps orchitis is rare.