Select the most appropriate option to substitute the bracketed segment in the given sentence. If there is no need to substitute it, select 'no substitution required'.
(Because he has been in custody from last July,) Pickard will now be released in four months.

A

Because he had been under custody from last July,

B

Because he has been in custody since last July,

C

Because he had been in custody from last July,

D

No substitution required