C) Most coniferous trees have both male and female cones.
Explanation:
Unlike flowering plants, conifers do not bear flowers. instead of flower they bear male and female cones.
The male cone produces the pollen and the female cone contains ovule which develop into seeds.
The reproductive cycle of a conifer begins in the spring when the male cone releases pollen in the wind and these pollen get trapped in the scales of female cones.
These pollen goes through a resting period and then fertilizes the ovule.that matures into seed.
The seeds of conifers are naked. i.e. not enclosed