The answer would be A. thick filaments!
The probability of transmitting both traits to his son is Zero. This is because the son has one X chromosome and one Y chromosome (XX), therefore since the traits are linked to the X chromosomes, it means the son will only be a carrier but will not show the trait phenotypically.
C. The lynx population crashes due to their food source being gone.
<span>Forest is the ecosystem that would be damaged the most by a fire. </span>