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Understanding Bernoulli's equation

Jishan studies two points at the same height,

1

and

2

, in a streamlined flow inside a tube of varying cross-sections. He already knows the pressure and flow speed at point

1

to be

P_{1}

and

v_{1}

But at point

2

, he measures the pressure,

P_{2}^{'}

, with a sensor that blocks the flow in order to get the reading. He calculates the flow speed,

v_{2}^{'}

, using Bernoulli's equation.

What can he say about the correctness of $P_{2}^{'}$ ‍ and $v_{2}^{'}$ ‍?

(Choice A)
$P_{2}^{'}$ ‍ is less than the true pressure, $v_{2}^{'}$ ‍ is greater than the true speed
(Choice B)
$P_{2}^{'}$ ‍ is less than the true pressure, $v_{2}^{'}$ ‍ is also less than the true speed
(Choice C)
$P_{2}^{'}$ ‍ is greater than the true pressure, $v_{2}^{'}$ ‍ is less than the true speed
(Choice D)
$P_{2}^{'}$ ‍ is greater than the true pressure, $v_{2}^{'}$ ‍ is also greater than the true speed

Class 11 Physics (India)