Which of the following is not a treatment for cancer? select one:
a. improving the diet
b. chemotherapy
c. radiation
d. surgery

a. improving the diet

Explanation:

anaphase.

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the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.