Help me.
Complete the second sentence so that it has a similar meanin to the first. Use which. 

2 men and boys can be very aggressive, which isn’t true of so many 3 male and female brains which 4 notice people’s problems, which means that female brains may be 5 requires a lot of system-thinking, which is why a lot of 6 says that both genders have strengths and weaknesses which makes