Rewrite the given sentence, using modal verbs, without any change of meaning or distortion:
The weather bureau announced the likelihood of the deep depression becoming stronger and the possibility of it turning into a cyclone.
1
The weather bureau announced the deep depression shall become stronger and must turn into a cyclone.
2
The weather bureau announced the deep depression shall become stronger and would turn into a cyclone.
3
The weather bureau announced the deep depression could become stronger and might turn into a cyclone.
4
The weather bureau announced the deep depression might become stronger and could turn into a cyclone.