Here are my definitions of each option:
Spam = Unwanted mail, advertisements, etc
Phishing = Link to a site, usually a fake replica of a legitimate site but with added implements that can be used to spy on you (how people become victims of identity theft
Malware = Usually a malicious piece of code that can be used to slow down your computer or to get a hold of your computer for some other malicious reason
Legitimate = Means that the sender is valid, you know who its coming from, and you know that you won't get attacked by the email
So based on this, I would say that the answer is B. Phishing
A=1/2h(a+b)
1/2 can be said as 0.5
so
A=0.5h(a+b)
0.5h is being multiplied with (a+b), taking this expression of left hand side gives
A/0.5(a+b)=h
OR
h=A/0.5(a+b)
This is the final answer
Audacity and Reaper are audio software programs.
Dreamweaver is for websites.
Illustrator is used for printing brochures, cards etc.
The answer would be A. Illustrator.
Lsass.exe /................................................