It’s Definitely A the other one’s are definitely wrong and I know A is a fact
We have that
From the question we are told
- A graduated cylinder with a least count of

- The initial water level, before inserting the irregular
- shaped solid.
- Is 30.0 ml. After inserting the solid,
- The water level is 34.5 ml.
Generally the equation for the new quantity. is mathematically given as
X=Initial level - Final Level
(initial and final error)
Therefore

Therefore
The Probable error is

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High speed wind current is called ocean current
I would say it's rationing: if people are only allowed a certain number of something (let's say: bottles of cooking oil), then the people who are entitled to is (as all are) but don't need is as much are likely to try to make profit by trying to sell it on a black market.