某项目建设期两年，第一年贷款100万元，第二年贷款200万元，贷款分年度均衡发放，年利率10％。如按年中计息方式计算，则建设期贷款的利息是（    ）万元。

A、<span lang="EN-US" style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-bidi-font-family: ">20 </span>

B、<span lang="EN-US" style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-bidi-font-family: ">25 </span>

C、<span lang="EN-US" style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-bidi-font-family: "><span style="mso-spacerun: yes"></span>25.5<span style="mso-spacerun: yes"></span></span>

D、<span lang="EN-US" style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-bidi-font-family: ">30</span>