What was london's drinking water was contaminated with?

I don’t know lol but it has high levels of calcium and magnesium which can cause limescale

London's water is hard, meaning it has a high level of calcium and magnesium compounds, causing limescale.

The equal protection clause, is part of the 14th amendment to the united states constitution,the clause, which took effect in 1868 provides that no state shall deny to any person within its jurisdiction "the equal protection of the lawthe equal protection clause states that citizens are protected equally under the law

Iwould say either b or ci could be wrong let me know