Answer:
I think A but I could be wrong
<span>The cause could be attentional saturation - where you use or see an item often and know what it looks like.With the cobination of seeing/using it often blurs what it actually looks like or what the details of the item are.</span>
..........<span>A </span>trade route<span> is a logistical network identified as a series of pathways and stoppages used for ... In modern times, commercial activity shifted from the </span>major trade routes<span> of .... Part of this road through </span>Pakistan<span> also coincided with the Silk Road...........
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