Please Explain why answer was chosen

QUESTION 5:Select the correct statement(s) regarding the Shannon-Hartley Capacity Theorem.

		a. the theorem identifies the theoretical maximum bit rate that is achievable based upon signal bandwidth and SNR
		b. according to the theorem, an increase in signal bandwidth accompanies an increase in bit rate capacity
		c. by increasing signal power, the theorem states that an increase in bit rate can be achieved
		d. all of the above are correct statements

QUESTION 6:Determine the decibel values of thermal noise power (N) and thermal noise power density (No) referenced to 1W given the following: T=288 degrees Kelvin, B = 36MHz.

		a. [N] = +128.44 dBW, [No]= +204.01dBW N
		b. [N] = 1.43E-13 dBW, [No] = 3.97E-21 dBW
		c. [N] = -128.44 dBW, [No]= -204.01dBW
		d. none of the above are correct

QUESTION 7: Determine the decibel value of SNR given a signal power, S=-100dBm, and noise power, N=-128dBm.

		a. SNR = -228 dB
		b. SNR = 28 dB
		c. SNR = -28 dB
		d. SNR = 228 dB

QUESTION 8: Determine the maximum theoretical data rate possible given a frequency bandwidth of 36 MHz and SNR=100.

		a. 36 Mbps
		b. 100 Mbps
		c. 72E6 bps
		d. 240 Mbps