Which geographic feature contributed most to the settlement of colonies along the atlantic coast? (1) mountainous terrain (2) extensive mineral deposits (3) subtropical climate (4) navigable rivers and harbors?

Navigable  rivers  and  natural  harbors  was  the  geographic  feature  that  contributed  most  to  the  settlement of  colonies  along  the  atlantic  coast.  The  natural   harbor   is a  body  of  water  sheltered  by  natural   barriers  which  is   well  deep  to provide a  good and  a  safe anchorage  place which  permit  the  transfer  of  cargo  and  passengers  between  the  ships  and  the   shore.

To relate to humans in a relational humanly way. 

The correct answer is (a.) in the coming years, the reyes family will save money because solar power requires little maintenance, and the energy used is free.