Most likely A from my point of view
A testable question is something you need data for, ex: if i bounce a bouncy ball from larger heights, how high will it fly? it can't be just a regular yes or no question
The merits include;
It's easy for a female to choose desired traits based on coloration and mastery of ritual in place of invoking a fight.
It gives the female more options to choose from as there are fewer deaths occasioned by fighting of males
Disadvantage
It isn't necessary true that a male with ritual ceremony mastery is the best among the pack.
Explanation:
In thermoplastics, the arrangement of monomeric units is linear and in thermosetting plastics, it is cross-linked. Thermoplastics are usually soft, weak and less brittle, so can get soften on heating and stiffen on cooling. They can be melted, remoulded and recycled easily.