Tiger tank vs Sherman tank

[tock24]

On average, how many Shermans were wasted on destroying one Tiger tank?

[a] 11
[b] 6
[c] 5
[d] 9

These are the only options I have !

[Mikeyd2]

According to this article , 5 would be the one .....

The Tiger's armour and firepower, however, were feared by all its opponents. In tactical defence, its poor mobility was less of an issue. Whereas Panthers had been the more serious threat to the Allied tanks, Tigers had a bigger psychological effect on Allied crews, causing a "Tiger hysteria". Allied crews would sometimes evade rather than confront Tigers, even if a tank only looked like one, such as the Panzer IV with turret skirts applied. In the Normandy campaign, it could take four to five Shermans to knock out a single Tiger tank by manoeuvring to its weaker flank or rear armour; the Soviet T-34s fared similarly against the German tanks, as had the German PzIII earlier against the Soviet heavy tanks. An accepted Allied tactic was to engage the Tiger as a group, one attracting the attention of the Tiger crew while the others attacked the sides or rear of the vehicle. Since the ammunition and fuel were stored in the sponsons, a side penetration often resulted in a kill. This was, however, a risky tactic, and often resulted in the loss of several Allied vehicles. It took a great deal of tactical skill to eliminate Tiger units