Why does the method of building a sustainable lobster fishery with casitas require additional improvements to be considered effective? (3 points) Question 7 options: 1) The casitas are too complicated to build, requiring far too much human effort. 2) The cost of the casitas is too large, so cheaper materials need to be found. 3) The lobsters tend to avoid the casitas, so alternative designs need to be tested. 4) The materials from which the casitas are made eventually degrade, which adds debris to the water