I am no expert but I think the correct answer is C.
The point that makes is that these are problems which can not be solved.
<u>Explanation:</u>
The point that Huxley makes about the nature of human and the nature of the communities of the human is that these are certain problems and such problems are not solvable.
Social engineers like Mustapha Mond ends up asking the questions like what is that thing which prevents the people from being happy in their lives. And after knowing that thing, there should be efforts made to remove the source of unhappiness of the people.
The plasma membrane of the enveloped alga cell serves as the source of the apicoplast's second outermost membrane.
<h3>Where did all chloroplasts come from?</h3>
Chloroplasts were first established in eukaryotes through an endosymbiotic relationship with a cyanobacterium; they later spread through the evolution of eukaryotic hosts and the subsequent engulfment of eukaryotic algae by formerly nonphotosynthetic eukaryotes.
<h3>How did eukaryotic cells develop mitochondria and chloroplasts?</h3>
Chloroplasts and mitochondria most likely developed from engulfed bacteria that once existed as autonomous organisms. An aerobic bacterium was eventually swallowed by a eukaryotic cell, which later established an endosymbiotic bond with the host eukaryote and gradually transformed into a mitochondrion.
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brainly.com/question/3142913
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