Fill in the blanks:
1. Multiple ovulation embryo transfer technology is for __a___ improvement.
2. In MOET, cows are administered hormones with __b__ like activity to induce follicular maturation and superovulation.
3. Instead of one egg per cycle __c___ eggs are produced through it.
4. The fertilised eggs at __d___ cell stages are recovered non-surgically and transferred to surrogate mother.