Plz hurry it's !
which of the following is not true about the end of slavery?

a.
most slaves were women who worked as household slaves.

b.
throughout the nineteenth century, european nations pressured asian and african countries to abolish slavery.

c.
by the beginning of the twentieth century, slavery was coming to an end in the muslim world.

d.
though slavery is no longer common, it still exists in some parts of the world today.

Which suggests the most critical aspect of the peak oil theory? 1) controversy rages over rumors that the fracking lobby in washington has influenced the statistics. 2) supporters and critics argue endlessly over the rate of extraction and shape of the bell curve. 3) saudi arabia will soon have to begin fracking, leading to protests and further destabilization. 4) a new oil discovery means a fresh peak cycle, making that region the target of aggressors.