Creating genetic map including time distance | Quick Homework Help

Three Hfr strains of E. coli are known to transfer their genetic material during conjugation in different sequences. Given the time of entry of the markers into the F- recipient, construct a genetic map, including time distances, which includes all of these markers, starting with C as number 1 and F as number 6. (Not all markers were assayed in each strain and remember the E.coli chromosome is circular.)
Strain 1 Markers C – B – E – D
Time (min) 1 5 14 18
Strain 2 Markers A – E – D – F
Time (min) 3 15 19 30
Strain 3 Markers B – A – F
Time (min) 5 8 14
a. C -1min %u2013 A %u2013 3min %u2013 B %u2013 9min %u2013 E %u2013 4min %u2013 D %u2013 11min %u2013 F
b. C -1min %u2013 B %u2013 3min %u2013 A %u2013 9min %u2013 E %u2013 4min %u2013 D %u2013 11min %u2013 F
c. C -1min %u2013 A %u2013 3min %u2013 B %u2013 9min %u2013 D %u2013 4min %u2013 E %u2013 11min %u2013 F
d. C -3min %u2013 A %u2013 1min %u2013 B %u2013 9min %u2013 E %u2013 4min %u2013 D %u2013 11min %u2013 F
e. C -3min %u2013 B %u2013 1min %u2013 A %u2013 9min %u2013 E %u2013 4min %u2013 D %u2013 11min %u2013 F