Which set of numbers has 270 as its least common multiple? a)30,90,390 b)18,30,54 c)25,125,120 d)2,9,15 plz

We know that
The least common multiple is the smallest positive number that is a multiple of two or more numbers

case A)30,90,390
30> 2.3*5
90> 2*3²*5
390---> 2*3*5*13
the LCM is> 2*3²*5*13> 1170

case B)18,30,54
18> 2*3²
30> 2*3*5
54> 2*3³
the LCM is > 2*3³*5> 270

case C)25,125,120
25> 5²
125---> 5³
120---> 2³*3*5
the LCM is> 5³*2²*3> 1500

case D)2,9,15
2> 2
9> 3²
15---> 3*5
the LCM is > 2*3²*5> 90

the answer is the option
 B)18,30,54

A: convex
B: convex
C: concave
D: concave