Mendel crossed a pure white-flowered recessive pea plant with a dominant pure red-flowered plant. The first generation of hybrids from the cross should show

• A

  50 per cent white-flowered and 50 per cent red-flowered plants

• B

  all red-flowered plants

• C

  75 per cent red-flowered and 25 per cent white-flowered plants

• D

  all white-flowered plants