By the time the software _______ on sale next month, the company _______ $2 million on developing it. A. went - had spent B. will go - has spent C. has gone - will spend

By the time the software _______ on sale next month, the company _______ $2 million on developing it.

    A. went - had spent                                         B. will go - has spent

          C. has gone - will spend