I am not an expert about this stuff but I think it is your second answer is correct but like I said I do not know.
A is the answer. I believe, although I’m not 100% sure
In this image we can see that A is identical to B, and C is identical to D.
Chromatid (Cht) is a
DNA molecule (the nucleofilament) associated with
histone proteins (PH) and
non-histone proteins (PNH)
<span>Each chromosome of a cell may consist of one or two chromatids depending on its state: just after a mitosis, or after the second meiotic division, each chromosome consists of only one chromatid, the rest of the time,
after DNA replication, each chromosome consists of two completely identical chromatids, connected by the centromere, thus giving the two rods the shape of an X.</span>
I'm not sure if this is right but i'd try Chloroplast.