Which amongst the following is true for the plant whose tap root is rich in $\mathrm{\beta }$ carotene and also it gets swollen to store food?

Sugarbeet, cabbages, carrots are some of the common biennials. Biennials are monocarpic plants that normally flower and die in the second season. For flowering, these plants have to be subjected initiallly to veranalisation and later required photoperiod either in natural conditions or artificial conditions.