The diagram below shows two longitudinal waves, wave X and wave Y, at one instant of their motion. Each oval represents a particle acted on by the energy of the wave as it moves from left to right. The number of ovals carrying wave X is equal to the number of ovals carrying wave Y.

Comparing the two, it appears that wave X has a greater _ than wave Y.
A.
wavelength
B.
amplitude
C.
period
D.
frequency

Sasha has just gotten a new job in a nearby city. after comparison shopping, she found that renting a nice two-bedroom apartment would cost around $800 per month. her utilities would cost about $150 per month. sasha has enough money saved for a down payment, and she found that she can buy a three-bedroom house or condo with a mortgage payment of $1,000 per month, including taxes and homeowner's insurance. her utilities would cost about $200 per month. what is the advantage of buying the house over renting the apartment?