The triangles are congruent by the SAS congruence theorem. By extension, we can also say they are similar using a closely related theorem. Any time there are congruent triangles, they are automatically similar.
This is why the answer is choice C) Similar - SAS
Note how
SB = ET ... which forms the first "S" in "SAS"
angle ESB = angle SET ... which forms the "A" in "SAS"
SE = SE ... which forms the second "S" in "SAS"
this is why SAS works
First generation: 3
Second generation:

Third generation:

Fourth generation:

And so on. The general formula for the

th generation is

. So by the 15th generation, you should expect around

geese.
Answer:
C
Step-by-step explanation: