Answer:
there is no such thing as a free lunch
Explanation:
The maxim "There ain't no such thing as a free lunch" also known as "there is no such thing as a free lunch" (TINSTAAFL), indicates the cost of decision-making and it's aftermath.
In this senerio, a particular genetic strain of Drosophila melanogaster reproduce at an earlier age than do other strains of this species at the expense of its lifecycle as this will cause a shortage of its lifecycle which is a negative aftermath compared to other strains that do not reproduce early.
I guess the stomach is held in place by a variety of Muscle cells, Epithelial cells, and connecting tissues; so the answer is: all of the above.
I would go with 4 that's what makes the most sense to me, and i just learned about this last year so... I hope this helps good luck..