Which one is a blueberry plant? Or there are none?

Question

First pic is a and second pic is b

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Answer 1

I have previously asked whether blueberry plants have trichoma (small white hairs) and the answer is not, because these two plants have trichoma (small white hairs)

Answer 2

With just one set of main leaves on these seedlings; identification is difficult. Give them both a bit more time and leaves.

https://www.gardeningknowhow.com/garden-how-to/gardening-by-zone/zone-4/zone-4-blueberries.htm