William adds two values, following the rules for using significant figures in computations. He should write the sum of these two numbers by using
O the same number of decimal places as the least precise value.
O the same number of decimal places as the most precise value.
O a range of the number of significant figures in the two values.
O an average of the number of significant figures in the two values.

it should be all of them because it asks if you included all of those in your answer

explanation:

b. examine and describe cells

the best answer is d because the strong cohesion is caused by the ability of water molecules to undergo hydrogen bonding.

a is incorrect because when water solidifies, it becomes   ice, which expands and occupies a bigger volume for the same mass of water in its liquid state.

b is incorrect because water has high surface tension. besides bonding to itself it hydrogen bonds to other molecules at the top decreasing possibility for breaking of attractive forces.

c is incorrect because the water molecule has oxygen which is highly electronegative and so pulls the electron pair towards itself creating a dipole moment, making the molecule polar.

e is incorrect because water has strong adhesion, ability to stick to other molecules such as glass because of this molecules having stronger hydrogen bonding than water.