GMAT Sentence Correction (SC) | Re: The rise in the Commerce Department's index of leading

The rise in the Commerce Department's index of leading economic indicatorssuggest that the economy should continue its expansion into the coming months, but that the mixed performance of the index's individual components indicates that economic growth will proceed at a more moderate pace than in the first quarter of this year.

A) suggest that the economy should continue its expansion into the coming months, but that - Subject verb agreement issue - rise is singular and suggest is plural . But
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