Euglenids are single-cell eukaryotes that live in aquatic environments. The chloroplasts found inside euglenids are enveloped by three membranes, as represented in Figure 1. The inner membrane of euglenid chloroplasts resembles the thylakoid membrane.The figure presents a Euglenid. A chloroplast is labeled inside the euglenid. There is also an enlarged zoomed-in figure of a portion of the chloroplast. The three membranes of the envelope that surrounds the chloroplast are labeled Chloroplast Envelope, and the innermost membrane of the three is labeled Inner Membrane. The zoom-in also shows a portion of a thylakoid inside the chloroplast itself, and a label points to the thylakoid membrane.Figure 1. Simplified diagram of a euglenid, showing the structure of the chloroplast envelopeWhich of the following claims about the origin of the euglenid chloroplast is best supported by the three-membrane structure of the envelope?It originated from the spontaneous assembly of organic molecules into a lipid bilayer inside a free-living prokaryote.Option A,It originated from the spontaneous assembly of organic molecules into a lipid bilayer inside a free-living prokaryote.It originated from the fusion of the plasma membranes of two different free-living photosynthetic prokaryotes.Option B,It originated from the fusion of the plasma membranes of two different free-living photosynthetic prokaryotes.It originated from the incorporation of a photosynthetic prokaryote into a eukaryotic cell by a