A because if you add and do the equation to all the cups
The answer is a start codon. An open reading frame is a region of DNA with a span of nucleotides beginning with a start codon (usually ATG) and ends with a stop codon (usually, TGA, TAG, TAA). An open reading frame when translated, codes for a full functional protein hence can be used to predict genes.
Answer: The answer is b, less related to modern organisms.
The answer is defiantly "C" it cant be any of the others because the movement would travel through one medium (rope) into the other medium (Beth) therefor Beth feels the tug of the rope.