himanshu0123
do we really need to use past perfect to show which event happened first.
isn't it clear from the context that recent growth in per capita happened first?
I think you're thinking along correct lines here, but the reality is more extreme: It's
wrong to use the past perfect here.
Stating that "one of the area's attractions
HAD BEEN... recent income growth" places
the ability of this phenomenon to attract businesses into the prior timeframe that had already passed by the time described.
That's nonsense. The area
WAS trying to attract new businesses
at the past time narrated (= the time at which the town "pursued its campaign"). A campaign of that sort could only make sense if it described attractions that obtained, as attractions,
at the time when they were advertised!Therefore, the correct way to write this sentence is actually C, not B.
To strengthen your intuition for why the attraction status doesn't have to be confined to the timeframe of the income growth itself, consider the same idea but stated in the present instead:
"One of the area's current attractions to new businesses IS the recent pattern of growth for its residents").
And, of course, for any tourist site of historical significance, we can definitely make statements such as
"This site IS a major tourist attraction because it WAS the site of [fill in historical event]".