Final answer:
The correct answer is 25 ova from 100 polar bodies because, in oogenesis, each meiotic event produces one ovum and one to three polar bodies; the polar bodies do not develop into ova.
Step-by-step explanation:
In oogenesis, the process through which ova or eggs are produced, there is an unequal cell division that typically results in the formation of one ovum and one to three polar bodies. The polar bodies are byproducts of the meiotic divisions that do not develop into ova; instead, they usually degrade. When considering the production of ova from polar bodies, since each ovum is the result of one meiotic event that also produces polar bodies, but not vice versa, the answer to how many ova will develop from 100 polar bodies would be a quarter of that number because only one ovum is produced per meiotic cycle alongside the polar bodies.
Therefore, for every four polar bodies produced, we have one ovum. So from 100 polar bodies, we can expect 25 ova to be produced, which makes option (a) the correct answer.