"16 Castaways Marooned in the South China Sea!" They Construct

"16 castaways marooned in the South China Sea!" They construct a 50-kg raft made out of Pulau Tiga wood,which Rudy has determined its specific gravity to be 0.047.If each survivor has a mass 100 kg,what is the maximum number of survivors that can ride the raft without sinking? (Rich says that the density of sea water is 1.03 * 10³ kg/m³.)

A) 10
B) 12
C) 14
D) all 16 castaways
E) None,the raft cannot float itself.