Need this ASAP Which of these must be FALSE, in order for evolution by natural selection to occur?

A. Variation between individuals exists in a population.

B. Particular variations of traits are passed on from one generation to the next.

C. Resources are limited, leading to competition within the population.

D. The particular traits present in one generation have no effect on traits in the next generation.

thank you :D

A100 kmol/h stream that is 97 mole% carbon tetrachloride (ccl4) and 3% carbon disulfide (cs2) is to be recovered from the bottom of a distillation column. the feed to the column is 16 mole% cs2 and 84% ccl4, and 2% of the ccl4 entering the column is contained in the overhead stream leaving the top of the column. calculate the mass and mole fractions of ccl4 in the overhead stream, and determine the molar flow rates of ccl4 and cs2 in the overhead and feed streams. 12. mw_ccla- 153.82; mw_cs2-76.14.