Solar eclipses occur about twice a year. but seeing a total solar eclipse is often described as a "once in a lifetime" experience. why is it so rare to experience a total solar eclipse?
total solar eclipses only occur once or twice a century
. the width of the moon's shadow is very narrow, so a particular area is very unlikely to lie along the path of totality during the eclipse.
total solar eclipses usually occur in late winter, when clouds are most likely to block the view.
if you aren't paying attention at the time, its very easy not to notice a total solar eclipse.

The correct answer is option B.

B) The width of the Moon's shadow is very narrow, so a particular area is very unlikely to lie along the path of totality during the eclipse.

Total solar eclipse is a very rare event to occur, This is called once in a lifetime experience because it is very difficult for the moon to cover the sun at a partial way, hence its very rare.

the wetland preservation movement began in the u.s. in earnest with the clean water act (cwa) of 1972. although not specifically written to protect wetlands, the cwa is comprised of a series of regulations designed to prevent pollutants from contaminating u.s. waters.