Which of the following statements is/are true about microscopes? (mark all correct responses)
the "working distance" for compound microscopes and dissecting microscopes is the same for both types of scopes, so you can use either type of microscope when examining any specimen
the amount of light illuminating a sample being examined under a compound microscope can be adjusted by adjusting the iris diaphragm and the condenser
since our microscopes are parfocal and parcentered, only minor adjustments to focus and position of the sample are necessary as we go from lower magnifications to higher magnifications
in a compound microscope, the total magnification of a sample is calculated by multiplying the magnification of the eye piece (usually 10x) by the magnification of the objective lens (4x, 10x or 40x)
when using a compound microscope, the coarse focus is used to bring a sample into focus at all levels of magnification

Sorry  i don't understand can you rephrase that

In order to understand the problems of unwanted infertility in a country — the gambia — where the desire for children and the fertility is very high, a population-based survey was undertaken. all infertile women in 24 randomly selected enumeration areas were assessed. the study included a review of the problems faced and coping mechanisms employed by infertility clients and types of health care available for infertile couples in the different types and levels of the formal and traditional health system. half of the infertile couples failed to seek formal health care, and they have to reach a certain level of care in order to be properly managed. alternative care is often sought. child fostering is also a frequent solution to childlessness. in-depth interviews revealed that traditional care like healers and spiritual leaders are frequently consulted long before formal health care. this delay could be a problem in those cases where infertility is caused by infections.