In pea plant, the trait for tall tem (T) i dominant over the trait for dwarf tem (t). The phenotypic ration of the offpring of two tall pea plant i 3:1. Which tatement explain the poible reaon for the ratio?

Both parent are homozygou tall. Both parent are homozygou hort. Both parent are heterozygou hort. Both parent are heterozygou tall